@article{article3bdbfc0f, title = {Total extrinsic curvature of certain distributions on closed spaces of constant curvature: special issue in memory of Alfred Gray (1939-1998)}, author = {Brito, Fabiano Gustavo Braga and Naveira, Antonio Martinez}, year = {2000}, doi = {10.1023/A:1006784702342}, journal = {Annals of Global Analysis and Geometry} }