Biography:
http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Kurschak.html
Book:
Hungarian problem book: Based on the Eötvös competitions, 1894-[1928] (New mathematical library) by József Kürschák; Random House (1963)
Article:
G. L. Alexanderson and K. Seydel: Kürschak's tile, Math. Gaz. 62 (421) (1978), 192-196.
Link:
Kürschák's Tile