24-channel 32 kb/s ADPCM transcoder using the CCITT recommendation G.721. - Sami Aly (ICASSP, 1986)

Characterization of a symbol rate timing recovery technique for a 2B1Q digital receiver. - Tyseer Aboulnasr; Mirna Hage; Babak Sayar; Sami Aly (IEEE Trans. Commun., 1994)