Hsiao-Hwa Chen Cheng-Hsien Cai Chien-Yao Chao Yu-Hsin Lin Signal Processing Synthesisation of pulse shaping waveforms for spectral efficient digital modulations: some practical approaches. 99-110 2006 17 Eur. Trans. Telecommun. 1 https://doi.org/10.1002/ett.1076 db/journals/ett/ett17.html#ChenCCL06