Effect of ageing on magnetic and electrical properties of Ti–substituted La-Sr manganites A. Badelin, Z. Datskaya, S. Estemirova, V. Karpasyuk and D. Merkulov EPJ Web Conf., 185 (2018) 06002 Published online: 04 July 2018 DOI: 10.1051/epjconf/201818506002