found: Literatura vasca, siglo XX, 1990?:t.p. (Jon Kortazar)
found: Euskal idazleak bizkaieraz, 1980?:t.p. (J. Kortazar)
found: Euskal literaturaren historia txikia, 1997:t.p. (Jon Kortazar) front flap (Jon Kortazar Uriarte; b. 1955; Basque literary critic)
found: Contemporary Basque literature, 2016:CIP t.p. (Jon Cortazar)
found: 2016-07-12 e-mail fr. D. Montero, Center for Basque Studies (Reno):(In response to a question re the author's name as Jon Cortazar on the CIP title page: "No the book should be corrected in proofs to have the spelling KORTAZAR. The difference is between Basque language orthography and Spanish orthography. Basque does not use a "C" while Spanish rarely uses a "K". So it often occurs that Basque people will have variants of their name. As we are the Center for Basque Studies, we prefer to use Basque orthography and consider the author to be KORTAZAR, although people there are often inconsistent depending on a variety of factors")