2 literature references for Porcellionides advena (Stuxberg, 1872):

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: Stuxberg, A.
Year: 1872
Title: Tvenne nya Oniscider beskrifne. Ofversigt Kongliga Svenska Vetenskaps- Akademiens Handlingar 29(9):3- 6.