, ▁one ▁of ▁the ▁first ▁sam iz dat ▁period ical s , ▁as ▁well ▁as ▁to ▁other ▁under ground ▁philosoph ers , ▁writers , ▁and ▁artists . ▁For ▁some ▁time ▁he ▁worked ▁as ▁a ▁secretary ▁to ▁the ▁great ▁Russian ▁poet ▁David ▁Sam oy lov , ▁and ▁also ▁as ▁a ▁g host writer ▁for ▁h ire . ▁ ▁At ▁first , ▁G ub erman ▁wrote ▁popular ▁science ▁books ▁( such ▁as ▁" Th ird ▁Tri um vir ate "), ▁but ▁he ▁gradually ▁became ▁more ▁and ▁more ▁active ▁as ▁a ▁diss ident ▁poet . ▁ ▁G ub erman ▁published ▁his ▁under ground ▁work ▁under ▁the ▁pseud onym s ▁I . ▁Mir on ov ▁and ▁Abr am ▁Kh ay y am , ▁connecting ▁the ▁names ▁of ▁the ▁famous ▁Pers ian ▁poet ▁O mar ▁Kh ay y ám ▁and ▁the ▁Jewish ▁first ▁name ▁Abr am . ▁▁ ▁In ▁ 1 9 7 9 , ▁G ub erman ▁was ▁arrested ▁and ▁sent enced ▁based ▁on ▁fabric ated ▁charges ▁to ▁five ▁years ▁in ▁the ▁Labor ▁Cam ps . ▁He ▁based ▁his ▁book , ▁Wal ks ▁Ar ound ▁the ▁Bar ra cks ▁( written ▁in ▁ 1 9 8 0 , ▁published ▁in ▁ 1 9 8 8 ), ▁on ▁the ▁di aries ▁he ▁kept ▁during ▁his ▁time ▁in ▁the ▁Gul ag . ▁ ▁In ▁ 1 9 8 4 , ▁G ub erman ▁returned ▁from ▁Si ber ia . ▁For ▁a ▁long ▁time , ▁he ▁could ▁get ▁neither ▁a ▁job ▁nor ▁a ▁residence ▁permit ▁( Pro pis ka )