(Writes through with quotes and details) GELSENKIRCHEN, Germany, Sept 18 (Reuters) - Schalke 04 were made to work hard for more than an hour before scoring three times to beat battling Steaua Bucharest 3-0 in their Champions League Group E opener on Wednesday. Atsuto Uchida gave the German side a lucky lead against the run of play when he floated in a 67th-minute cross to the near post and the ball bounced into the net after a defensive misunderstanding. ... More...