W. Riehl

Effects of alpha-tocopherol acetate on the swimming endurance of trained swimmers.

J. L. Smith, J. D. Lawrence, R. C. Bower, 1975, The American journal of clinical nutrition.

The effect of Cyanophyta upon zooplankton in a eutrophic tropical lake (Lake Valencia, Venezuela)

A. Infante, W. Riehl, 1984, Hydrobiologia.

The effect of alpha tocopherol (vitamin E) and pyridoxine HCL (vitamin B6) on the swimming endurance of trained swimmers.

J. L. Smith, J. D. Lawrence, R. C. Bower, 1975, Journal of the American College Health Association.

Aspects of the phytoplankton of the Gurí Reservoir, Venezuela, and the importance of its relationship with water chemistry

T. V. Vilarrúbia, A. Ibáñez, W. Riehl, 1994 .