The paper studies a method for evaluating current literature that receives little consideration in research and development. Various types of undervalued studies are recognized, and how they are related to a systematic review is shown. A diagram is presented that illustrates scoping studies...

The paper presents the results based on the survey about the development of non-governmental organizations (NGOs) in Poland. The authors present the owner’s opinions of NGOs managers. Moreover, the authors presented characteristics of the non-governmental organizations and the area of their...