3 literature references for Warburgiella isopterygioides Dixon & Potier de la Varde, 1930:

Author: Iishiba
Year: 1929
Title:
Source: Cat. Mosses Japan
Author: Crosby, M. R. and others - INSUFFICIENT
Year: 1999
Title: INSUFFICIENTLY known because not REVISED since its pre-1963 publication; that is to say we have no more information about the species than Index Muscorum; merely relisted without additional specimens in a checklist since 1963; may have been treated in
Source: Checklist Mosses
Author: Dixon & Potier de la Varde
Year: 1930
Title:
Source: Ann. Cryptog. Exot.