Research partners, museums, collaborator and sample sharer include:
For Frederick Feulner:
Roger Joussaume, Sophie Corson, Severine Braguier
from Le Historial de la Vendée, Les Lucs-sur-Boulogne (France) --> cattle mandibles and bones for stable isotope analyses
Lisette Kootker from Vrije Universiteit Amsterdam (The Netherlands) --> Strontium isotope research data
For Nienke van Doorn:
Ulrich Schmölcke, Archäologisches Landesmuseum Schloß Gottorf, Schleswig (Germany)