(en)plˈaŋkɐlkˌuːl(ru): (en)ðə fˈɜːst hˈaɪlˈɛvəl pɹˈəʊɡɹamɪŋ lˈaŋɡwɪdʒ(ru) (en)and ɪts ˌɪmplɪməntˈeɪʃən(ru) sɭˈɛʃ (en)ɹˈəʊhɑːs(ru), (en)ɹˈɔːl ˈɛt ˈal(ru).,
''Plankalkül: The First High-Level Programming Language and its Implementation'' / Rojas, Raúl et al.,