Shirley Schwarz’s LIMC Vol. 5 (1990) & Vol. 9 Supplement (2009) "Herakles/Hercle" articles
”Herakles/Hercle” in LIMC V II (Plates) pp. 163-186
”Herakles/Hercle” in LIMC IX I Supplement, 2009 Text
”Herakles/Hercle” in LIMC IX II Supplement, 2009 Plates