@article{Kovalevskaya2018grounds,
author={Kovalevskaya, E.V. and Kolesnik, L.I.},
title={GROUNDS FOR THE INTEGRATION OF PROBLEM-BASED AND LEARNER CENTERED APROACHES IN PROFESSIONAL EDUCATION},
journal={Bulletin of Nizhnevartovsk State University},
publisher={Nizhnevartovsk State University},
year={2018},
pages={40-46},
volume={},
issue={2},
}