TY  - CHAP
A1  - Reitner, Joachim
A1  - Keupp, H.
ED  - Reitner, Joachim
T1  - The fossil record of the Haplosclerid excavating sponge Aka de Laubenfels
T2  - Fossil and recent sponges
Y1  - 1991
DO  - 10.23689/fidgeo-2700
PB  - Springer
UR  - http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/7013
ER  -