JungKim, Chan, et al. “Effects of the Exhaust Gas Heat Recovery System With a Plate Heat Exchanger on the Warm-up Performance Characteristics of the Gasoline Engine”. International Journal of Engineering & Technology, vol. 7, no. 2.12, Apr. 2018, pp. 136-40, https://doi.org/10.14419/ijet.v7i2.12.11110.