1. Al-Kadhomiy, N.K. (1985) Gill development, growth, and respiration of the flounderPlatichthys flesus L. PhD thesis, Bristol University (not seen in original).
2. Byczkowska-Smyk, W. (1957) The respiratory surface of the gills in teleosts. Part I. The respiratory surface of the gills in the flounder (Pleuronectes platessa) and the perch (Perca fluviatilis).Zool. Polon. 3, 91?111.
3. Byczkowska-Smyk, W. (1958) The respiratory surface of the gills in teleosts. Part II. The respiratory surface of the gills in the eel (Anguilla anguilla L.), the loach (Misgurnus fossilis L.) and the perch-pike (Lucioperca lucioperca L.)Acta biol. cracov. 1, 83?97.
4. Byczkowska-Smyk, W. (1959a) The respiratory surface of the gills in teleots. Part III. The respiratory surface of the gills in the tench (Tinca tinca L.), the silver bream (Blicca bjoerkna L.) and the chondrostoma (Chondrostoma nasus L.).Acta biol. cracov. 2, 73?88.
5. Byczkowska-Smyk, W. (1959b) The respiratory surface of the gills of teleosts: Part IV. The respiratory surface of the gills in the pike (Esox lucius L.), stone-perch (Acerina cernua L.), and the burbot (Lota lota L.).Acta biol. caacov. (Ser. zool.) 2, 113?27.