@article{article31efe1ab,
title   = {c-equivalence of embeddings in different from equivalence and bordism of pairs},
author = {Loibel, Gilberto Francisco and Pinto, Roberto Carvalho Engler},
year = {1982},
doi = {10.1007/bf02584677},
journal   = {Boletim da Sociedade Brasileira de Matemática}
}