Eduard Sz<U+00F6>cs, Tam<U+00E1>s Stirling, Eric R. Scott, Andreas Scharm<U+00FC>ller,
Ralf B. Sch<U+00E4>fer (2020). webchem: An R Package to Retrieve Chemical
Information from the Web. Journal of Statistical Software, 93(13).
<doi:10.18637/jss.v093.i13>.