edited by M. Nemčok, EGI, University of Utah, USA, EGI Laboratory at SAV, Slovakia ; S. Rybár, EGI Laboratory at SAV, Slovakia, Comenius University, Slovakia ; S.T. Sinha, Reliance Industries Ltd, India ; S.A. Hermeston, White Rose Energy Ventures, UK and ; L. Ledvényiová, EGI Laboratory at SAV, Slovakia, Comenius University, Slovakia