Pseudo-inversion on Formal Languages. - Da-Jung Cho; Yo-Sub Han; Shin-Dong Kang; Hwee Kim; Sang-Ki Ko; Kai Salomaa (UCNC, 2014)

Pseudo-inversion: closure properties and decidability. - Da-Jung Cho; Yo-Sub Han; Shin-Dong Kang; Hwee Kim; Sang-Ki Ko; Kai Salomaa (Nat. Comput., 2016)