PLEISTOZAENE DIFFERENZIERUNG DER AMAZONISCHEN KOGELFAUNA.HAFFER J.1974; BONN. ZOOL. BEITR., DTSCH; DEU; 1974, VOL. 25, NUM. 0001-0003, P. 87 A 117Serial Issue

VERBREITUNG UND HYBRIDISATION DER PIONITES-PAPAGEIEN AMAZONIENS. = REPARTITION GEOGRAPHIQUE ET HYBRIDATION DES PERROQUETS D'AMAZONIE DU GENRE PHAFFER J.1977; BONN. ZOOL. BEITR.; DTSCH.; DA. 1977; VOL. 28; NO 3-4; PP. 269-278; ABS. ANGL.; BIBL. 24 REF.Article

AVIFAUNA OF NORTHWESTERN COLUMBIA, SOUTH AMERICAHAFFER J.1975; BONN. ZOOL. MONOGR.; DTSCH.; DA. 1975; NO 7; PP. 1-182; ABS. ALLEM.; BIBL. 9 P. 1/2Serial Issue

A SYSTEMATIC REVIEW OF THE NEOTROPICAL GROUND-CUCKOOS (AVES, NEOMORPHUS).HAFFER J.1977; BONN. ZOOL. BEITR.; DTSCH.; DA. 1977; VOL. 28; NO 1-2; PP. 48-76; ABS. ALLEM.; BIBL. 3 P.Article

Avian species richness in Tropical South AmericaHAFFER, J.Studies on neotropical fauna and environment. 1990, Vol 25, Num 3, pp 157-183, issn 0165-0521Conference Paper

On the «river effect» in some forest birds of southern AmazoniaHAFFER, J.Boletim do Museu Paraense Emílio Goeldi. Nova série. Zoologia. 1992, Vol 8, Num 1, pp 217-245, issn 0077-2232Article

Superspecies and species limits in vertebratesHAFFER, J.Zeitschrift für Zoologische Systematik und Evolutionsforschung. 1986, Vol 24, Num 3, pp 169-190, issn 0044-3808Article

SPECIATION PATTERNS IN THE AMAZONIAN FOREST BIOTASIMPSON BB; HAFFER J.1978; ANNU. REV. ECOL. SYSTEMAT.; USA; DA. 1978; VOL. 9; PP. 497-518; BIBL. 4 P.Article

ASPECTS OF NEOTROPICAL BIRD SPECIATION DURING THE CENOZOIC = LES ASPECTS DE LA DIVERSIFICATION D'UN OISEAU NEOTROPICAL PENDANT LE CENOZOIQUEHAFFER J; NELSON GARETH ED; ROSEN DONN E ED et al.1981; VICARIANCE BIOGEOGRAPHY; A CRITIQUE; SYMPOSIUM OF THE SYSTEMATICS DISCUSSION GROUP OF THE AMERICAN MUSEUM OF NATURAL HISTORY; USA; NEW YORK:COLUMBIA UNIV. PRESS; DA. 1981; PP. 371-394; ILL.Conference Paper