Mild step-down heating causes increased transcription levels of hsp68 and hsp84 mRNA and enhances thermotolerance development in Reuber H35 hepatoma cells - Van Wijk, R.; Ovelgönne, J.H.; de Koning, E.; Jaarsveld, K.; Van Rijn, J.; Wiegant, F.A.C (Int J Hyperth, 1994)