The Journal of China Universities of Posts and Telecommunications
Quantitative and qualitative research on service quality
evaluation system in NGN
LIU Lu , ZHOU Wen-an, SONG Jun-de
Acta Metallurgica Sinica(English letters) . 2009, (5): 71 -77 .  DOI: 10.1016/S1005-8885(08)60271-X

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