??? ???? ? ? ?? ????? ??. ??, ??? ??, ??? ???, ??? ?? ??? ???? ???? {??? ????? ??. ??? ?? ?? ???? ??? ?? ??? ??? ?? ???? ??? ??? ????. ??? ??? ?? ???? ???? ??? ????, ????? ????? ???? ???? ???? ??? ????. ?? ???? ??? ?? ???? ??? ????? ??? ???? ?? ???? ??? ?? ????. business trips and their impact