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- [3] EXPERIMENTS IN SEPARATING PIG MANURE AND LIQUID MANURE IN ENGLAND LANDBOUWMECHANISATIE, 1969, 20 (06): : 591 - &
- [4] STUDIES ON MICROBIOLOGICAL CONTROL OF LIQUID MANURE HANDLING WATER AIR AND SOIL POLLUTION, 1977, 8 (02): : 165 - 170
- [9] UTILIZING BIODISCS IN THE TREATMENT OF LIQUID PIG MANURE REVUE DE L AGRICULTURE, 1980, 33 (06): : 1245 - 1255