@article {554,
	title = {Systematic and morphological studies on some European species of Turbicellepora (Bryozoa, Cheilostomata)},
	journal = {Journal of Natural History},
	volume = {12},
	year = {1978},
	chapter = {551},
	author = {Hayward, P.J.}
}
@article {6,
	title = {SEM Atlas of type and figured material from Robert Lagaaij{\textquoteright}s {\textquoteright}The Pliocene Bryozoa of the Low Countries{\textquoteright} (1952)},
	journal = {Mededelingen Rijks Geologische Dienst},
	volume = {43},
	year = {1989},
	chapter = {1},
	isbn = {90-72869-03-6},
	author = {Bishop, J.D.D. and Hayward, P.J.}
}
