null (INRA )

Aarhus University (AU) [Aarhus, Denmark]

DALL'OLIO RAFFAELE

Friedrich-Loeffler-Institut (FLI) [Greifswald, Germany]

Jagiellonian University [Krakow, Poland]

Martin Luther University Halle-Wittenberg (MLU) [Halle, Germany]

Nottingham Trent University (NTU) [Nottingham, United Kingdom (the)]

Pensoft Publishers (Bulgaria)

Sciensano (Belgium) [City of Brussels, Belgium]

Sciprom (Switzerland) [Lausanne, Switzerland]

STICHTING BEEP

STICHTING WAGENINGEN RESEARCH

SUOMEN MEHILAISHOITAJAIN LIITTO SMLRY

University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca (USAMVCN) [Klausenburg, Romania]

University of Bern (UB) [Berne, Switzerland]

University of Coimbra [Coimbra, Portugal]