dear all, i am looking for a copy of the joke-book "zeme usmevu". this book contains czech jokes from the time of the second world war. those jokes were collected by oskar krejci and the book was published in 1945 by gustav petru. i was looking at the library and skimmed through antiquariates here in zurich but was not able to finde a copy of this book. my question; does anyone know something about this book or does have a copy of it? does this book maybe exist in a digital format (scanned)? i appreciate any hint and help. best, lu.b.