. . "Thierfelder" . "http://www.wikidata.org/entity/Q6581097" . "Albert" . . . "Albert Thierfelder"@en . "Albert Thierfelder" . . "1908" . . "Ferdinand Albert" . "Ferdinand A. Thierfelder" . . "Ferdinand Albert Thierfelder" . . "1842" . "Ferdinand A." .