@ARTICLE{Jeszka_Anna_Maria_PROBLEMY_2013, author={Jeszka, Anna Maria}, number={No 158}, journal={Organization and Management}, howpublished={online}, year={2013}, publisher={The Committee on Organizational and Management Sciences}, publisher={Warsaw School of Economics}, title={PROBLEMY BADAWCZE I HIPOTEZY W NAUKACH O ZARZÄ„DZANIU RESEARCH PROBLEMS AND HYPOTHESES IN MANAGEMENT SCIENCES}, }