Sen-Yung Lee and  Li-Kuo Chou and  Chao-Kuang Chen,  Transient Heat Transfer of a Spiral Fin.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2016, vol. 115(7). 1219 - 1223
    [viewed 25 May 2020]. Available from: https://publications.waset.org/pdf/10004789.