S.RAJAN; K.MALATHI. Oscillation theorems for second order neutral difference equations with “Maxima”. Malaya Journal of Matematik, India, v. 6, n. 02, p. 417–419, 2018. DOI: 10.26637/MJM0602/0019. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/854. Acesso em: 16 jul. 2024.