@misc{Chang2021,
author = {Chang, W. and Cheng, J. and Allaire, J.J. and Sievert, C. and Schloerke, B. and Xie, Y. and Allen, J. and McPherson, J. and Diepert, A. and Borges, B.},
title= {Package ‘shiny [version 1.7.1]},
year = {2021},
URL = {https://cran.r-project.org/web/packages/shiny/index.html},
}