sentences:  Matthews and Foreman, authors of "Luftwaffe Aces — Biographies and Victory Claims", researched the German Federal Archives and found records for 219 aerial victory claims, plus two further unconfirmed claims.This figure of confirmed claims includes 134 aerial victories on the Eastern Front and 85 on the Western Front, including 11 four-engined bombers and 12 victories with the Me 262 jet fighter.Victory claims were logged to a map-reference (PQ = "Planquadrat"), for example "PQ 35 Ost 53224".