@article{articlea40b904e, title = {Studies of Brazilian meteorites XVI. Mineralogy, petrology and chemistry of the Ipiranga, ParanĂ¡, Chondrite}, author = {Gomes, Celso B. and Keil, Klaus and Ruberti, Excelso and Jarosewich, Eugene and Silva, J. M. L. U.}, year = {1978}, journal = {Chemie der erde geochemistry} }