Catalog of 50 WCN Auctions, B. Paszkiewicz, Podobna jest moneta nasza do urodnej panny, Warsaw 2012
An interesting item authored by one of the most famous Polish numismatists and professor of Wroclaw University, Borys Paszkiewicz,
additionally with the auction offer of WCN auction number 50.
Hardcover lacquered, A4 format, page 234