Tulis terus kanggo paragraf iki - Constantin uga menang wolung medali ing ICF Canoe Sprint World Championships karo salaka (K-2 500 m: 1977) lan pitu perunggu (K-2 500 m: 1978
, 1979, 1981; K-4 500 m: 1974, 1978, 1979, 1983).