1. Achenbach, U., Wohlfarth-Bottermann, K.E. (1980) Oscillating contractions in protoplasmic strands ofPhysarum: Mechanical and thermal methods of phase shifting for studying the nature of the synchronizing factor and its transmission. J. Exp. Biol.85, 21?31
2. Cieslawska, M., Grebecki, A. (1978) Contraction-expansion rhythms simultaneously observed in two sites ofPhysarum polycephalum plasmodium. Acta Protozool.17, 533?541
3. Fleischer, M., Wohlfarth-Bottermann, K.E. (1975) Correlation between tension force generation, fibrillogenesis and ultrastructure of cytoplasmic actomyosin during isometric and isotonic contractions of protoplasmic strands. Cytobiologie10, 339?365
4. Grebecki, A., Cieslawska, M. (1978) Plasmodium ofPhysarum polycephalum as a synchronous contractile system. Cytobiologie17, 335?342
5. Grebecki, A., Moczon, M. (1978) Correlation of contractile activity and of streaming direction between branching veins ofPhysarum polycephalum plasmodium. Protoplasma97, 153?164