Contemporary Challenges of Transport Systems and Traffic Engineering : 13th Scientific and Technical Conference "Transport Systems. Theory and Practice 2016" Katowice, Poland, September 19-21, 2016 Selected Papers
“ At the end of your life, you will never regret not having passed one more test, not winning one more verdict or not closing one more deal. You will regret time not spent with a husband, a friend, a child, or a parent. ” ― Barbara Bush