Reference

M. Krawczyk, M. Golembiewska [Golembiewska-Skoczylas Golembowaks-Skoczylas], S. Radzikowski (1990): Cytoplasmic zones responsible for differentiation of the new macronucleus and degradation of the old in Chilodonella Steini (Trithigmostoma steini) – Acta Protozool. – 29: 23 - 35.