@article{{qqml}{}, author = {Rusinova, E.}, title = { Application of quantitative and qualitative methods in the study of library activities in Bulgaria}, journal = {Qualitative and Quantitative Methods in Libraries}, volume = {6}, number = {2}, year = {2019}, url = {http://78.46.229.148/ojs/index.php/qqml/article/view/400} }