Some perovskite-like mixed oxides of general formula La(1-x)A＇xBO3 were prepared by the amorphous citrate method and tested for methane combustion within the 300-600 degrees C temperature range. Substitution at A-site with a bivalent (Eu, Sr) or tetravalent (Ce) metal cation led to a decrease or increase of catalytic activity, respectively. La0.9Ce0.1CoO3 proved to be the most active catalyst, showing complete conversion at 500 degrees C. The nature of the metal cation introduced modifies the oxidation state of cobalt, which leads to the formation of cationic or anionic vacancies. TPD-RIS analysis confirmed that the catalytic activity is related to the oxygen storage properties of the catalyst. The substitution at B-site (B = Fe, Co, Ni) allowed to find interesting correlations between catalytic activity and the temperature T-max of maximum oxygen desorption rate.