@article{10_5427_jsing_2022_25i,
     author = {Ronaldo Garcia and D\'ebora Lopes, and Jorge Sotomayor},
     title = {Critical principal singularities of hypersurfaces in {Euclidean} 4-spaces},
     journal = {Journal of Singularities},
     pages = {150--172},
     publisher = {mathdoc},
     volume = {25},
     year = {2022},
     doi = {10.5427/jsing.2022.25i},
     url = {http://geodesic.mathdoc.fr/articles/10.5427/jsing.2022.25i/}
}