Reference

G. Shields, Wilhelm Foissner (2003): Diverse perspectives on the protozoan - metazoan transition. — In: #Legakis A., Sfenthourakis S., Polymeni R. & Thessalou-Legaki M.# (Eds): The new panorama of animal evolution: proceedings XVIII International Congress of Zoology – Pensoft, Sofia and Moscow – : 243 - 246.