Bulletin of the Brazilian Mathematical Society, New Series
Bulletin of the Brazilian Mathematical Society, New Series > 2011 > 42 > 4 > 507-536
Bulletin of the Brazilian Mathematical Society, New Series > 2011 > 42 > 4 > 625-649
Bulletin of the Brazilian Mathematical Society, New Series > 2011 > 42 > 4 > 805-830
Bulletin of the Brazilian Mathematical Society, New Series > 2011 > 42 > 4 > 607-623
Bulletin of the Brazilian Mathematical Society, New Series > 2011 > 42 > 4 > 559-578
Bulletin of the Brazilian Mathematical Society, New Series > 2011 > 42 > 4 > 537-557
Bulletin of the Brazilian Mathematical Society, New Series > 2011 > 42 > 4 > 853-867
Bulletin of the Brazilian Mathematical Society, New Series > 2011 > 42 > 4 > 831-852
Bulletin of the Brazilian Mathematical Society, New Series > 2011 > 42 > 4 > 683-781
Bulletin of the Brazilian Mathematical Society, New Series > 2011 > 42 > 4 > 579-606
Bulletin of the Brazilian Mathematical Society, New Series > 2011 > 42 > 4 > 783-803
Bulletin of the Brazilian Mathematical Society, New Series > 2011 > 42 > 4 > 651-681