On singularities arising from the contraction of the minimal section a a ruled surface.
Tomari, Masataka ; Hidaka, Fumio
Manuscripta mathematica, Tome 64 (1989), p. 329-348 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1989-01-01
EUDML-ID : urn:eudml:doc:155443 
@article{GDZPPN002230216,
     title = {On singularities arising from the contraction of the minimal section a a ruled surface.},
     journal = {Manuscripta mathematica},
     volume = {64},
     year = {1989},
     pages = {329-348},
     zbl = {0705.14036},
     url = {http://dml.mathdoc.fr/item/GDZPPN002230216}
}

Tomari, Masataka; Hidaka, Fumio. On singularities arising from the contraction of the minimal section a a ruled surface.. Manuscripta mathematica, Tome 64 (1989) pp. 329-348. http://gdmltest.u-ga.fr/item/GDZPPN002230216/