Normdaten
http://id.loc.gov/rwo/agents/no2011108228
http://isni.org/isni/0000000121032341
http://viaf.org/viaf/96391098
http://www.wikidata.org/entity/Q14531650
https://d-nb.info/gnd/1072152452/about
https://de.wikipedia.org/wiki/Eug%C3%A8ne_Martin_%28Maler%29