2 literature references for Porcellio marginalis Budde-Lund, 1879:

Author: Schotte, M., B.F. Kensley, and S. Shilling.
Year: 1995
Title: nwards). World list of Marine, Freshwater and Terrestrial Crustacea Isopoda. National Museum of Natural History Smithsonian Institution: Washington D.C., USA.
Author: Budde-Lund, G.
Year: 1879
Title: Prospectus generum specierumque crustaceorum isopodum terrestrium. 10