I had this book bookmarked somewhere and now I have lost it somewhere. The only faint description I can remember was something about a culture of Seminars in Hungary and it was decided that a series should be tailored for undergrads. The content of the resulting seminar(s) were compiled and translated into the book.
Possibly this book by Laczkovich is what you have in mind. And if it is not, still do consider it, it is very good. The book is I think available in Hungarian, if that is your preference. The book may be also available as an E-book download from the usual disreputable sources.