TY - Chinese Journal of Management Science A1 - ZHOU Yan-ju, SHEN Zhen, YING Ren-ren T1 - Free or Subscription? Exploring the Optimal Online Content Revenue Model with Considering Advertisement Quality Y1 - 2021-07-20 JF - Chinese Journal of Management Science JO - Chinese Journal of Management Science SP - 202 EP - 213 VL - 29 IS - 7 UR - http://www.zgglkx.com N1 - 10.16381/j.cnki.issn1003-207x.2018.0517 ER -