pub lished , ▁d ating ▁from ▁her ▁student ▁days ▁in ▁Leipzig , ▁in ▁C ▁minor . ▁Mik h ail ▁I pp olit ov - I van ov ▁( 1 8 5 9 – 1 9 3 5 ): ▁At ▁least ▁one ▁string ▁quart et , ▁Op . ▁ 1 3 ▁in ▁A ▁minor . ▁Josef ▁Boh us lav ▁Fo er ster ▁( 1 8 5 9 – 1 9 5 1 ): ▁Five ▁string ▁quart ets ▁( 1 8 8 8 – 1 9 5 1 ; ▁the ▁fifth ▁incomplete ▁at ▁his ▁death ). ▁Nikol ay ▁S ok ol ov ▁( 1 8 5 9 – 1 9 2 2 ): ▁Three ▁string ▁quart ets ▁( in ▁F ▁major ▁Op . ▁ 7 , ▁in ▁A ▁major ▁Op . ▁ 1 4 ▁and ▁in ▁D ▁minor , ▁Op . ▁ 2 0 , ▁published ▁ 1 8 9 0 , ▁ 1 8 9 2 ▁and ▁ 1 8 9 4 ) ▁and ▁contributed ▁to ▁projects ▁of ▁the ▁B ely ay ev ▁circle ▁with ▁Nikol ai ▁R im sky - K ors akov , ▁Alexander ▁Gla z un ov , ▁Alexander ▁K opy lov ▁and ▁others ▁( including ▁a ▁pol ka ▁for ▁Les ▁V end red is ▁for ▁string ▁quart et ▁and ▁other ▁works ). ▁ ▁Born ▁in ▁the ▁ 1 8 6 0 s ▁Emil ▁von ▁Re zn ice k ▁( 1 8 6 0 – 1 9 4 5 ): ▁Four ▁string ▁quart ets , ▁including ▁No . ▁ 1 ▁in