HAL White gold : studies in early electrum coinage Van Alfen, Peter Gerritt; Wartenberg, Ute; Fischer-Bossert, Wolfgang; Gitler, Haim; Konuk, Koray; Lorber, Catharine C.; Bresson, Alain; Callataÿ, François de. White gold : studies in early electrum coinage, The American Numismatic Society; The Israel Museum, pp.337-378, 2020, 978-0-89722-349-2