Two college hockey stars charged with disorderly conduct in late December here have pleaded not guilty. University of North Dakota forward T.J. Oshie, of Warroad, Minn., and New Hampshire forward Michael Radja were arrested at Oshie's apartment early in the morning on Dec. 30, hours after the two teams had finished a weekend hockey series the night before. Neither law enforcement officers nor school officials have released details of the incident. Oshie is scheduled to appear Feb. 26 for a bench trial, according to municipal court officials. A trial date has not been set for Radja. UND Coach Dave Hakstol suspended Oshie for one game. UNH Coach Dick Umile suspended Radja for two games. Oshie and Radja were the leading scorers on their teams at the time of their arrests.