Koster, L.S.; Sithole, F.; Gilbert, G.E.; Artemiou, E. The potential beneficial effect of classical music on heart rate variability in dogs used in veterinary training. J. Vet. Behav. 2019, 30, 103–109.
					
									
					 
					
					
			
					
											
					
															
						United States Department of Agriculture, Animal and Plant Health Inspection Service & Animal Care Division, (2013). Temperature and Humidity in Dog Kennels [APHIS Animal Care Tech Note].  Environment Management Temperature Humidity Ventilation
					
									
					 
					
					
			
					
											
					
															
						Tod, E., Brander, D., Waran, N.,  Efficacy of dog appeasing pheromone in reducing stress and fear related behaviour in shelter dogs. environment management temp humidity ventilation
					
									
					 
					
					
			
					
											
					
															
						Hermiston, C., Montrose, V. T., & Taylor, S. The effects of dog-appeasing pheromone spray upon canine vocalizations and stress-related behaviors in a rescue shelter.  Temperature Humidity Ventilation Environment management
					
									
					 
					
					
			
					
											
					
															
						Grigg, E.K. and Piehler, M. . Influence of dog appeasing pheromone (DAP) on dogs housed in a long-term kennelling facility. Environment Management temp humidity ventilation
					
									
					 
					
					
			
					
											
					
															
						 The prevention and management of heat stroke in dogs. Animal Medical Center of Southern California. Environment Management Heat Humidity temperature