A study on the two typical types of american public libraries rating A study on the design of a hybrid policy for carbon abatement Rankings never really quantify contributions: A quantitative and qualitative study on universities and their libraries A compArAtive study of countries‘ responsibilities for cArbon dioxide emission in An open economy A study on ecological operation of web IP industrial chain Study on the focuS Strategy of e-commerce enterpriSe under the background of "internet+":a caSe Study of kunming ch999 Evaluation of intelligent tourism information service capabilities:A case study of Hanzhong City A Study of SuperviSion performAnce of chinA‘S commerciAl BAnkS from the perSpective of the trinity-chArActeriSticS of BAnk SuperviSion SyStem A study on the innovAtion of regionAl environmentAl mAnAgement mechAnism in Beijing;tiAnjin And heBei AreA within the BAckground of ecologicAl civilizAtion Software Project Management Approaches for Global Software Development: A Systematic Mapping Study