@article{CRMATH_2013__351_5-6_203_0,
     author = {Curto, Ra\'ul Enrique and Lee, Sang Hoon and Yoon, Jasang},
     title = {Subnormality of 2-variable weighted shifts with diagonal core},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {203--207},
     publisher = {Elsevier},
     volume = {351},
     number = {5-6},
     year = {2013},
     doi = {10.1016/j.crma.2013.03.002},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2013.03.002/}
}