In fact the classification of the crystallographic space groups was made independently by E S Fedorov. Schönflies corresponded with Fedorov and corrected some minor errors in his classification.
Sa katunayan ang pag-uuri ng crystallographic space grupo ay ginawa sa pamamagitan ng malaya ES Fedorov. Schönflies corresponded sa Fedorov at Nawastong ilang mga menor de edad error sa kanyang pag-uuri.