1. Axell, M., Fahlen, P. (2002). Vertical display cabinet. SP (The Swedish National Testing and Research Institute). Sweden.
2. ACGIH, (1971). Carbon dioxide. Documentation of the threshold limit values for substances in workroom air. In: American Conference of Governmental Industrial Hygienists, third edition, Cincinnati, OH, p. 39.
3. Amin, M., Navaz, H.K., Dabiri, D., Faramarzi. R., (2008). Air curtains of open refrigerated display cases revisited: a new technique for infiltration rate measurements. In: 10th International Conference on Advanced Computational Methods and Experimental Measurements in Heat Transfer, Maribor, Slovenia.
4. Standard Test Method for Volumetric and Mass Flow Measurement an a Duct Using Tracer Gas Dilution;ASTM E2029-99,2004
5. ASHRAE Handbook of Fundamentals, (2005). American Society of Heating, Refrigeration and Air-Conditioning Engineers.