http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
[no.1-2]. Atome I-II = Atoms I-II -- [no. 3]. Atome III--Molekule I = Atoms III--Molecules I.
From the library of Dr. R.G. Breene, Jr., March 2004.