High field magnetoresistance of nanocomposites (Co84Nb14Ta2)X(Al2O3)100-X near the percolation threshold Mikhail Blinov, Ivan Zakharchuk, Erkki Lähderanta, Alexander Sitnikov, Igor Rodionov, Valerii Prudnikov, Vladimir Rylkov and Alexander Granovsky EPJ Web Conf., 185 (2018) 01013 Published online: 04 July 2018 DOI: 10.1051/epjconf/201818501013