@inproceedings{inproceedingsa67bcbbe, title = {Measurement of an exponential oxygen depht profile in porons graphite}, author = {Martins, J V and Tabacniks, Manfredo Harri and Fantini, Márcia Carvalho de Abreu and Gorenstein, A}, year = {1993}, publisher = {Coppe}, booktitle = {International Workshop on Surface Engineering} }