Pipchenko E. L. , Serova T. S. «Subject oriented and problem based text materials as an object of a flexible foreign language reading in research projects» // Language and Culture 2015. №1 C.46-54
Pipchenko E. L. , Serova T. S. «Subject oriented and problem based text materials as a subject of flexible foreign language reading in research projects» // Language and Culture 2014. №4 C.80-88