Graça, D. ; Rojas, C. ; Zhong, N.
Transactions of the American Mathematical Society Vol. 370, Nº -, pp. 2955 - 2970, January, 2018.
ISSN (print): 0002-9947
ISSN (online): 1088-6850
Scimago Journal Ranking: 2,17 (in 2018)
Digital Object Identifier: 10.1090/tran/7228
