A thesis, newly deposited online:

Rodolfo Munoz Casado (2000), Los mitos de Cthulhu como movimiento literario, Ph.D. thesis. Madrid, deposited online 2012. In Spanish.

“analyses the so-called Cthulhu Mythos as a true literary movement […] the Cthulhu Mythos fiction has a fundamental unity and a prominence within a literary genre, and it is not commercial work to be considered as lower in quality or importance.”