To cite 'soilphysics' in publications use:

da Silva, A.R.; de Lima, R.P. (2015) soilphysics: an R package to determine soil preconsolidation pressure. Computers and Geosciences, 84: 54-60.

de Lima, R.P.; da Silva, A.R.; da Silva, A.P.; Leao, T.P.; Mosaddeghi, M.R. (2016) soilphysics: an R package for calculating soil water availability to plants by different soil physical indices. Computers and Eletronics in Agriculture, 120: 63-71.

Corresponding BibTeX entries:

@Article{, title = {soilphysics: an R package to determine soil preconsolidation pressure}, author = {A. R. da Silva and R. P. de Lima}, journal = {Computers and Geosciences}, year = {2015}, volume = {84}, pages = {54-60}, }

@Article{, title = {soilphysics: an R package for calculating soil water availability to plants by different soil physical indices}, author = {R. P. de Lima and A. R. da Silva and A. P. da Silva and T. P. Leao and M. R. Mosaddeghi}, journal = {Computers and Eletronics in Agriculture}, year = {2016}, volume = {120}, pages = {63-71}, }