What are malaria parasites?Javier Pérez-Tris; Dennis Hasselquist; Olof Hellgren; Asta Krizanauskiene; Jonas Waldenström; Staffan Bensch · 2005

Split moult: Stress or strategy?Hedenström, Anders; Bensch, Staffan; Hasselquist, Dennis; Lindström, Åke; Åkesson, Susanne; Pearson, David · Ringing & Migration · 1992

Is avian humoral immunocompetence suppressed by testosterone?Dennis Hasselquist; James A. Marsh; Paul W. Sherman; John C. Wingfield · 1999

Evidence for active female choice in a polygynous warblerStaffan Bensch; Dennis Hasselquist · 1992

Is Avian Humoral Immunocompetence Suppressed by Testosterone?Dennis Hasselquist, James A. Marsh, Paul W. Sherman and John C. Wingfield · Behavioral Ecology and Sociobiology · 1999

Extra-Pair Fertilizations in the Sedge WarblerÅsa Langefors, Dennis Hasselquist and Torbjörn von Schantz · Journal of Avian Biology · 1998

Are chronic avian haemosporidian infections costly in wild birds?Muhammad Asghar; Dennis Hasselquist; Staffan Bensch · 2011