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- [3] COMPARISON OF ROTIFERA IN NATURAL AND MAN-MADE WATERS OF MANTECAL ACTA CIENTIFICA VENEZOLANA, 1977, 28 : 46 - 46
- [8] GRASSLANDS - A MULTIFUNCTIONAL LINK BETWEEN NATURAL AND MAN-MADE ECOSYSTEMS EKOLOGIA CSFR, 1983, 2 (04): : 337 - 345