"For example, while it is true that words like vol and pük don't really look like world and speak, but the whole language is not like that. Scores of words are very obvious as what they mean – if, fasilik, gudik/badik, smalik, jerik (pronounced sherík – expensive), bank, bäk (back), deadik". – "What the L!", AUXLANG list posting by Thomas Alexander, 15 November 2005.
doi.org
Fiedler, Sabine (2015). "The topic of planned languages (Esperanto) in the current literature". Language Problems and Language Planning. 39 (1): 84–104. doi:10.1075/lplp.39.1.05fie.
"Members du Comité Central"(PDF), Le Volapük (in French), Association Français pour la propagation du Volapük: 2–3, archived from the original(PDF) on 2017-08-11, retrieved 2018-01-24
"Members du Comité Central"(PDF), Le Volapük (in French), Association Français pour la propagation du Volapük: 2–3, archived from the original(PDF) on 2017-08-11, retrieved 2018-01-24
