@article{10_1017_S001708951400038X,
     author = {CURR\'AS-BOSCH, CARLOS},
     title = {SINGULAR {COTANGENT} {MODEL}},
     journal = {Glasgow mathematical journal},
     pages = {415--430},
     year = {2015},
     volume = {57},
     number = {2},
     doi = {10.1017/S001708951400038X},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S001708951400038X/}
}