https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse English Hungarian Orlai Petrich Soma. Ország-Világ, 1880
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse English Hungarian Mudrony Soma. Gelléri Mór A magyar ipar...1887