8 0 s . ▁Main ▁destin ations ▁were ▁West ▁Germany , ▁Austria , ▁and ▁Switzerland , ▁and ▁to ▁a ▁less er ▁extent ▁France ▁and ▁Sweden . ▁That ▁generation ▁of ▁di as por a ▁is ▁collect ively ▁known ▁as ▁g ast ar b aj ter i , ▁after ▁German ▁g ast arbe iter ▁(" gu est - worker "), ▁since ▁most ▁of ▁the ▁em igr ants ▁head ed ▁for ▁German - spe aking ▁countries . ▁ ▁Rec ent ▁em igration ▁took ▁place ▁during ▁the ▁ 1 9 9 0 s , ▁and ▁was ▁caused ▁by ▁both ▁political ▁and ▁economic ▁reasons . ▁The ▁Y ug oslav ▁wars ▁caused ▁many ▁Ser bs ▁from ▁Cro atia ▁and ▁Bos nia ▁and ▁Herz egov ina ▁to ▁leave ▁their ▁countries ▁in ▁the ▁first ▁half ▁of ▁the ▁ 1 9 9 0 s . ▁The ▁economic ▁san ctions ▁im posed ▁on ▁Ser bia ▁caused ▁an ▁economic ▁collapse ▁with ▁an ▁estimated ▁ 3 0 0 , 0 0 0 ▁people ▁leaving ▁Ser bia ▁during ▁that ▁period , ▁ 2 0 % ▁of ▁which ▁had ▁a ▁higher ▁education . ▁ ▁Language ▁▁▁▁▁ ▁Ser bs ▁speak ▁Ser bian , ▁a ▁member ▁of ▁the ▁South ▁S lav ic ▁group ▁of ▁languages , ▁specifically ▁the ▁South western ▁group . ▁Standard ▁Ser bian ▁is ▁a ▁standard ized ▁variety ▁of ▁Ser bo - C ro at ian , ▁and ▁therefore ▁mut ually ▁intellig ible ▁with ▁Standard ▁Cro at ian ▁and ▁Standard ▁Bos n ian ▁( see ▁D iffer ences ▁in ▁standard ▁Ser bian , ▁Cro at ian ▁and