▁Geography ▁Sciences ▁awarded ▁him ▁an ▁associate ▁professor ▁title . ▁He ▁was ▁Dean ▁of ▁the ▁Center ▁for ▁Cont inu ing ▁Education ▁from ▁ 1 9 9 3 ▁to ▁ 1 9 9 5 ▁and ▁Head ▁of ▁the ▁Department ▁" E conom ics ▁and ▁Organ ization ▁of ▁Tour ism " ▁from ▁ 1 9 9 3 ▁to ▁ 1 9 9 5 . ▁ ▁Al most ▁through ▁all ▁the ▁years ▁he ▁was ▁man aging ▁the ▁pros pective ▁student ▁comm itte es ▁ex ams ▁in ▁Geography ▁at ▁the ▁University . ▁There ▁are ▁more ▁than ▁ 3 0 ▁publications , ▁including ▁ 5 ▁books ▁– ▁" D aily ▁Labor ▁Tra vel ▁in ▁Bulg aria ", ▁" Ge ography ▁of ▁Tour ism ", ▁" T our ism ▁resources ", ▁" E conom ics ▁and ▁Organ ization ▁of ▁Tour ism " ▁and ▁" Ge ography ▁of ▁Tour ism ▁– ▁one ▁century ▁of ▁development ▁and ▁achiev ements ". ▁There ▁are ▁two ▁special izations ▁in ▁Moscow ▁( Russ ia ) ▁and ▁Gu ild ford ▁( UK ). ▁ ▁Bibli ography ▁ ▁Books ▁ ▁( co - author ed ▁with ▁George ▁Tra ik ov , ▁Stefan ▁St ay kov ▁H re lev , ▁Ad rian ▁Vas ile v ▁And ree v , ▁Sarah ▁Ivan ov , ▁Apost ol ▁Apost ol ov ▁At anas ov , ▁Konst antin ▁Sav ov ▁Kal ink ov ) ▁Dem ographic ▁situation ▁and ▁development ▁of ▁the ▁settlement ▁system . ▁V arna : ▁V IN S ▁D . B lag o ev , ▁ 1 9 8 4 ,