TY - JOUR AN - 006871790 PY - 1986/01/01 TI - Urea metabolism and its significance in the nitrogen cycle in the euphotic layer of lake biwa japan iv. regeneration of urea and ammonia JO - Archiv fur Hydrobiologie VL - 107 IS - 4 SP - 425 EP - 440 UR - https://eurekamag.com/research/006/871/006871790.php ER -