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Paul Robert Magocsi; Jean W. Sedlar; Robert A. Kann; Charles Jevich; Joseph Rothschild (1974). A History of East Central Europe. University of Washington Press. p. 29. ISBN978-0-295-95358-8. Retrieved 10 May 2012.
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Paul Robert Magocsi; Jean W. Sedlar; Robert A. Kann; Charles Jevich; Joseph Rothschild (1974). A History of East Central Europe. University of Washington Press. p. 30. ISBN978-0-295-95358-8. Retrieved 10 May 2012.
Paul Robert Magocsi; Jean W. Sedlar; Robert A. Kann; Charles Jevich; Joseph Rothschild (1974). A History of East Central Europe. University of Washington Press. p. 32. ISBN978-0-295-95358-8. Retrieved 10 May 2012.