1. Ultrastructure of meiosis in three species of Physarum;Aldrich;Mycologia,1967
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3. Resistant structures in the Myxomycetes;Aldrich,1976
4. Bechtel, D. B. (1974). A light and electron microscopic study of sporogenesis in Physarella oblonga—from the vegetative plasmodium through spore germination. M.S. Thesis, Iowa State University, Ames.
5. Nuclear degeneration in the Myxomycete Physarella oblonga;Bechtel;Protoplasma,1976