Invalid expression:vl{1
Brockhaus-1911: Bekker [2] · Bekker
DamenConvLex-1834: Bekker, Elisabeth
Eisler-1912: Bekker, Balthasar
Herder-1854: Bekker [3] · Bekker [2] · Bekker [1]
Pierer-1857: Bekker-Bagert · Bekker