Krakowska, Paulina, Jarzyna, Jadwiga, Wawrzyniak-Guz, Kamila, Puskarczyk, Edyta, Zych, Marcin. HETEROGENEITY ANALYSIS OF THE POLISH SHALE GAS FORMATIONS BASED ON RESULTS OF LABORATORY MEASUREMENTS. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 16th International Multidisciplinary Scientific GeoConference SGEM2016, Science and Technologies in Geology, Exploration and Mining, 2016, pp. 817-824. https://doi.org/10.5593/sgem2016/b13/s06.103