JAS Arqueologia has published a special academic monograph by Riccardo Frigoli, in Spanish, called: “Las excavaciones de R’Lyeh: La arqueología como metodo, la prehistoria como idea y la literatura fantastica de H.P. Lovecraft”. I very roughly translate this as… “The Excavations at R’Lyeh: the methods of archaeology and the prehistory of this [profession, as found] in the fantastical works of H.P. Lovecraft.” The Introduction, in Spanish, is online as a free PDF, if anyone wants to create an accurate English abstract.