EBSEES: 3 hits for Oblak, Vatroslav

The European Bibliography of Slavic and East European Studies (EBSEES) collects books, journal articles, reviews and dissertations from Eastern Europe (former countries of Eastern Bloc) which were published in Belgium, Germany, Finland, France, Great Britain, the Netherlands, Austria and Switzerland from 1991 to 2007. The segment "Literature" and "Culture" of the European Bibliography of Slavic and East European Studies contains 18.000 bibliographic entries (from the total asset of 85.000). More information can be found here.

Your search for Oblak, Vatroslav provides 3 hits
1	Vatroslav Oblak i ego vklad v izučenie bolgarskih dialektov Bojadžiev, Todor, in: Wiener Slavistisches Jahrbuch, 45, 1999, p. 15-20
2	The beginnings of the scientific study of minor Slavic languages: the correspondence between Jan Baudouin de Courtenay (1845-1929) and Vatroslav Oblak (1864-1896) München, Slavica-Verl. Kovač, 1992, 400 p.
3	Glagolitica: Zum Ursprung der slavischen Schriftkultur Wien, Verl. d. Österr. Akad. d. Wiss., 2000, 243+xvi p., Ill., graph. Darst. (Schriften der Balkan-Kommission, Philologische Abteilung / Österreichische Akademie der Wissenschaften, Philosophisch-Historische Klasse, 41)

The European Bibliography of Slavic and East European Studies (EBSEES) - 1991-2007

Vatroslav Oblak i ego vklad v izučenie bolgarskih dialektov

The beginnings of the scientific study of minor Slavic languages: the correspondence between Jan Baudouin de Courtenay (1845-1929) and Vatroslav Oblak (1864-1896)

Glagolitica: Zum Ursprung der slavischen Schriftkultur