1. A Contribution to the Theory of Non-isothermal Laminar Flow of Fluids inside a Straight Tube of Circular Cross Section;Yamagata;Mem. Fac. Engr., Kyushu Imp. Univ.,1940
2. Elementary inequalities for Mills’ ratio;Komatu;Rep. Statist. Appl. Res. Un. Jap. Sci. Engrs.,1955
3. On the Transmission Error Function for Meteor-Burst Communication;Franklin Montgomery;Proc. IRE,1958
4. A Remark on “Elementary Inequalities for Mills’ Ratio” by Yûsaku Komatu;Pollak;Rep. Statist. Appl. Res. Un. Jap. Sci. Engrs.,1956