Generate a sentence about this data: Danish National Badminton Championships, Previous Winners; 1979/1980 MIXED_DOUBLES Steen Fladberg Lene Kppen , Gentofte BK; SEASON 1979/1980
During the 1978/79 Danish National Badminton Championships, Steen Fladberh and Lene Kppen, of Gentofte BK, won the mixed doubles, while Morten Frost, of the same club, won men's singles.