00521naa#a2200145#i#4500001001500000005001700015011001400032100004100046102000700087200011200094210010900206215001000315608002700325856002300352EN\\bibl\6705720251219115600.5##a2712-7761##a20230630b2023####ek#y0engy0150####ca##aRU1#aCoryphaeus of coal geology The 100th anniversary of the birth of Yuri Vasilyevich StepanoveJournal article1#aSyktyvkarcFSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"d2023##a0 с.##aJournal article2local4#akomisc.editorum.ru