@misc{SoestBeglingerdeVoogd2012,
  author    = {Rob W. M. van Soest and Elly J. Beglinger and Nicole J. de Voogd},
  title     = {Sponges of the family Esperiopsidae (Demospongiae, Poecilosclerida) from Northwest Africa, with the descriptions of four new species},
  booktitle = {European journal of taxonomy : 18},
  doi       = {10.5852/ejt.2012.18},
  series    = {European journal of taxonomy : EJT},
  number    = {18},
  type      = {periodicalpart},
  pages     = {1 -- 21},
  year        = {2012},
}