00502naa#a2200157#i#4500001003300000005001700033100004100050102000700091200007700098210004500175215001000220608003700230686003500267700002200302856002000324EN\ACADEMUS PUBLISHING\bibl\180020241006041934.7##a20161201b2016####ek#y0engy0150####ca##aRU1#aEVOLUTION OF SANDY BEACH IN THE CITY OF VARNAeConference article/thesis1#aSan FranciscocAcademus Publishingd2016##a0 с.##aConference article/thesis2local##aЭкология. 34.352grnti#1aVeliko ZgDachev 4#aacademuspub.com