1. Åkesson B, Gschwentner R, Hendelberg J, Ladurner P, Müller J, Rieger R (2001) Fission in Convolutriloba longifissura: asexual reproduction in acoelous turbellarians revisited. Acta Zool 82
2. Baguña J, Saló E, Romero R (1989) Effects of activators and antagonists of the neuropeptides substance P and substance K on cell proliferation in planarians. Int J Dev Biol 33:261–264
3. Bartolomaeus T, Balzer I (1997) Convolutriloba longifissura, nov. spec. (Acoela)—first case of longitudinal fission in plathelminthes. Microfauna Marina 11:7–18
4. Bullock TH, Horridge GA (1965) Structure and function in the nervous systems of invertebrates. WH Freeman and Company, San Francisco, London
5. Cebria F, Nakazawa M, Mineta K, Ikeo K, Gojobori T, Agata K (2002) Dissecting planarian central nervous system regeneration by the expression of neural-specific genes. Dev Growth Differ 44:135–146