Release of loads to biological step at biological P-N reduction using balancing of flow, adsorption or hypro-process in one stepAsmus, U.; Mölder, Heino7th IAWQ International Conference on Design and Operation of Large Wastewater Treatment Plants, Technical University of Vienna, Vienna, Austria, August 27 to September 1, 1995 : proceedings. Vol. 2, Posters1995 / p. 5-19: ill