Gygax, L., Neisen, G., Bollhalder, H. (2007): Accuracy and validation of a radar-based automatic local position measurement system for tracking dairy cows in free-stall barns. Computers and Electronics in Agriculture 56, pp 23-33
Neisen, G. (2008): Positive relationsships in dairy cows: measurement, general atterns and reactions to the introduction of heifers, recorded ba y local position measurements system in cubicle houses. Inauguraldissertation, Mathematisch-Naturwissenschaftliche Fakultät, Westfäische Wilhelms-Universität Münster.
Neisen, G., Wechsler, B., Gygax (2009): Choice of scan-sampling intervals - An example with quantifying neighbours in dairy cows. Applied Animal Behaviour Science, 116, 134-140.
Gygax, L.; Neisen, G.; Wechsler, B. (2009) Differences between single and paired heifers in residency in functional areas, length of travel path, and area used throughout days 1-6 after integration into a free stall dairy herd. Applied animal Behaviour Science 120: 49-55.
Neisen, G.; Wechsler, B.; Gygax, L. (2009) Effects of the introduction of single heifers or pairs of heifers into dairy-cow herds on the temporal and spatial associations of heifers and cows. Applied Animal Behaviour Science 119: 198-209.
Neisena,b, G.; Wechslera, B.; Gygaxa, L. (2009) Effects of the introduction of single heifers or pairs of heifers into dairy-cow herds on the temporal and spatial associations of heifers and cows. Applied Animal Behaviour Science 119: 127-136.
Reefmanna,b,N.; Bütikofer Kaszàsa,c, F.; Wechslera, B.; Gygaxa, L. (2009) Ear and tail postures as indicators of emotional valence in sheep. Applied Animal Behaviour Science 118:199-207.
Reefmanna,b, N.; Bütikofer Kaszàsa,c , F.; Wechslera, B.; Gygaxa, L. (2009) Physiological expression of emotional reactions in sheep. Physiology & Behaviour 98:235-241.
Reefmanna,b,*, N.; Wechslera, B.; Gygaxa, L. (2009) Behavioural and physiological assessment of positive and negative emotion in sheep. Animal Behaviour 78:651-659.
Gygax, L., Neisen, G., Wechsler, B. (2010) Socio-spatial relationships in dairy cows. Ethology. Volume 116, Issue 1, pages 10–23.
Gygax, L., Neisen, G., Wechsler, B. (2009) Erstkalbende in Milchviehherden eingliedern: Paare haben es leichter als Einzeltiere. ART-Bericht 715.