Some stability questions concerning caustics for different propagation laws.
Romero Fuster, Maria del Carmen ; Ruas, Maria Aparecida Soares
Portugaliae Mathematica. Nova Série, Tome 51 (1994), p. 595-605 / Harvested from The Electronic Library of Mathematics
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Publié le : 1994-01-01
EUDML-ID : urn:eudml:doc:47286 
@article{00763839,
     title = {Some stability questions concerning caustics for different propagation laws.},
     journal = {Portugaliae Mathematica. Nova S\'erie},
     volume = {51},
     year = {1994},
     pages = {595-605},
     zbl = {0824.57022},
     language = {en},
     url = {http://dml.mathdoc.fr/item/00763839}
}

Romero Fuster, Maria del Carmen; Ruas, Maria Aparecida Soares. Some stability questions concerning caustics for different propagation laws.. Portugaliae Mathematica. Nova Série, Tome 51 (1994) pp. 595-605. http://gdmltest.u-ga.fr/item/00763839/