ČAPLINSKAS, Albertas. Grammar production rules as a formalism to specify user interface. Lietuvos matematikos rinkinys, [S. l.], v. 37, n. I, p. 249–254 , 1997. DOI: 10.15388/LMD.1997.38231. Disponível em: https://journals.vu.lt./LMR/article/view/38231. Acesso em: 19 apr. 2025.