Kotlarska, I. (2018). International language volapük (wolapik) — career and barrier. In E. Woźniak & A. Lenartowicz-Zagrodna (Eds.), Philology as the Ordering of Chaos: Language and Text Studies. Ad honorem Professoris Marci Cybulski (pp. 35-49). Lodz University Press. https://doi.org/10.18778/8142-402-8.04