@article{PIM_2013_N_S_94_108_a6,
     author = {Bang-Yen Chen},
     title = {A {Tour} {Through} $\delta$-invariants: from {Nash's} {Embedding} {Theorem} to {Ideal} {Immersions,} {Best} {Ways} of {Living} and {Beyond}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {67 },
     publisher = {mathdoc},
     volume = {_N_S_94},
     number = {108},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_2013_N_S_94_108_a6/}
}