Опанасенко, В. Н., and С. Б. Завъялов. “Implementation of a Modem With High Channel Capacity on Based the Chip CPLD Type COOL RUNNER-II”. Problems of Informatization and Control, vol. 2, no. 62, Dec. 2019, pp. 47-51, doi:10.18372/2073-4751.2(62).14471.