@Manual{R,
  title = {R: A Language and Environment for Statistical Computing},
  author = {{R Core Team}},
  organization = {R Foundation for Statistical Computing},
  address = {Vienna, Austria},
  year = {2012},
  note = {{ISBN} 3-900051-07-0},
  url = {http://www.R-project.org/},
}

@article{ihaka:1996,
  Author = {Ihaka, Ross and Gentleman, Robert},
	Journal = {Journal of Computational and Graphical Statistics},
	Number = 3,
	Pages = {299--314},
	Title = {R: A Language for Data Analysis and Graphics},
	Volume = 5,
	Year = {1996}
}

@article{cobb,
  author = { Cobb, George W. and Moore, David S. },
  title = { Mathematics, statistics, and teaching },
  journal = { American Mathematical Monthly },
  year = {1997},
  pages = { 801--823}
}



@article{scheider,
author = {Simon Scheider and Benedikt Gräler and Edzer Pebesma and Christoph Stasch},
title = {Modeling spatiotemporal information generation},
journal = {International Journal of Geographical Information Science},
volume = {30},
number = {10},
pages = {1980-2008},
year = {2016},
URL = {https://dx.doi.org/10.1080/13658816.2016.1151520},
}

@book{iliffe,
pages = { 208 },
title = { Datums and Map Projections: For Remote Sensing, GIS and Surveying },
year = { 2008 },
author = { Jonathan Iliffe and Roger Lott },
publisher = {CRC Inc}
}

@article{sp,
 author = {Pebesma, Edzer and Bivand, Roger},
 year = 2005,
 title = { Classes and methods for spatial data in {R}},
 url = {https://cran.r-project.org/doc/Rnews/},
 journal = {R News},
 volume = 5,
 issue = 2,
 pages = {9--13}
}

@article{si,
  title={The international system of units ({SI})},
  author={{International Bureau of Weights and Measures} and Taylor, Barry N and Thompson, Ambler},
  year={2001},
  publisher={US Department of Commerce, Technology Administration, National Institute of Standards and Technology}
}

@Manual{birkdeprecated,
    title = {birk: {MA} {Birk}'s Functions},
    author = {Matthew A. Birk},
    year = {2016},
    note = {R package version 2.1.0},
    url = {https://CRAN.R-project.org/package=birk}
}

@Manual{birk,
    title = {measurements: Tools for Units of Measurement},
    author = {Matthew A. Birk},
    year = {2016},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=measurements}
}


@Manual{NISTunits,
    title = {NISTunits: Fundamental Physical Constants and Unit Conversions from NIST},
    author = {Jose Gama},
    year = {2014},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=NISTunits}
}

@article{lubridate,
   author = {Garrett Grolemund and Hadley  Wickham},
   title = {Dates and Times Made Easy with lubridate},
   journal = {Journal of Statistical Software},
   volume = {40},
   number = {1},
   year = {2011},
   issn = {1548-7660},
   pages = {1--25},
   doi = {10.18637/jss.v040.i03},
   url = {https://www.jstatsoft.org/index.php/jss/article/view/v040i03}
}

@Article{zoo,
    title = {zoo: S3 Infrastructure for Regular and Irregular Time Series},
    author = {Achim Zeileis and Gabor Grothendieck},
    journal = {Journal of Statistical Software},
    year = {2005},
    volume = {14},
    number = {6},
    pages = {1--27},
    doi = {10.18637/jss.v014.i06},
}

@Manual{xts,
    title = {xts: eXtensible Time Series},
    author = {Jeffrey A. Ryan and Joshua M. Ulrich},
    year = {2014},
    note = {R package version 0.9-7},
    url = {https://CRAN.R-project.org/package=xts}
}

@article{spacetime,
   author = {Edzer Pebesma},
   title = {spacetime: Spatio-Temporal Data in {R}},
   journal = {Journal of Statistical Software},
   volume = {51},
   number = {1},
   year = {2012},
   issn = {1548-7660},
   pages = {1--30},
   doi = {10.18637/jss.v051.i07},
   url = {https://www.jstatsoft.org/index.php/jss/article/view/v051i07}
}

@article{ucum,
  title={The Unified Code for Units of Measure},
  author={Schadow, Gunther and McDonald, Clement J},
  journal={Regenstrief Institute and UCUM Organization: Indianapolis, IN, USA},
  year={2009}
}

@Manual{h5,
    title = {h5: Interface to the 'HDF5' Library},
    author = {Mario Annau},
    year = {2016},
    note = {R package version 0.9.7},
    url = {https://CRAN.R-project.org/package=h5}
}

@Manual{RNetCDF,
    title = {RNetCDF: Interface to NetCDF Datasets},
    author = {Pavel Michna and Milton Woods},
    year = {2016},
    note = {R package version 1.8-2},
    url = {https://CRAN.R-project.org/package=RNetCDF}
}

@inproceedings{sos4R,
  author = { Nüst, D. and Stasch, C. and Pebesma, E. J. },
  title = { Connecting {R} to the Sensor Web },
  editor = {Geertman, S. and Reinhardt, W. and Toppen, F.},
  title = { Advancing Geoinformation Science for a Changing World },
  series = { Lecture Notes in Geoinformation and Cartography},
  publisher = { Springer },
  year = {2011},
  pages = {227--246}
}

@Manual{tibble,
    title = {tibble: Simple Data Frames},
    author = {Hadley Wickham and Romain Francois and Kirill Müller},
    year = {2016},
    note = {R package version 1.2},
    url = {https://CRAN.R-project.org/package=tibble}
}

@Manual{hms,
    title = {hms: Pretty Time of Day},
    author = {Kirill Müller},
    year = {2016},
    note = {R package version 0.2},
    url = {https://CRAN.R-project.org/package=hms}
}

@article{netcdf,
  title={NetCDF: an interface for scientific data access},
  author={Rew, Russ and Davis, Glenn},
  journal={IEEE computer graphics and applications},
  volume={10},
  number={4},
  pages={76--82},
  year={1990},
  publisher={IEEE}
}

@Manual{measurements,
    title = {measurements: Tools for Units of Measurement},
    author = {Matthew A. Birk},
    year = {2016},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=measurements}
}

@Book{lattice,
    title = {Lattice: Multivariate Data Visualization with R},
    author = {Deepayan Sarkar},
    publisher = {Springer},
    address = {New York},
    year = {2008},
    note = {ISBN 978-0-387-75968-5},
    url = {http://lmdvr.r-forge.r-project.org}
}

@Book{ggplot2,
    author = {Hadley Wickham},
    title = {ggplot2: Elegant Graphics for Data Analysis},
    publisher = {Springer-Verlag New York},
    year = {2009},
    isbn = {978-0-387-98140-6}
}

@book{lang,
	author = {Lang, K.R},
	title = { Astrophysical Formulae Volume II: Space, Time, Matter and Cosmology, 3rd Edition 1999. 2nd printing },
	publisher = { Springer },
	year = 2006
}

@article{rj,
  author       = {Edzer Pebesma and Thomas Mailund and James Hiebert},
  title        = {{Measurement Units in R}},
  journal      = {{The R Journal}},
  year         = 2016,
  volume       = 8,
  number       = 2,
  pages        = {486--494},
  doi          = {10.32614/RJ-2016-061}
}
