Masataka Shimojo, Yutaka Nakano. A Preliminary Analysis of Space-Time Structure of Animal Growth by the Use of 4-Dimensional Vector. JOURNAL OF THE FACULTY OF AGRICULTURE KYUSHU UNIVERSITY. 2014. 59. 2. 297-299
Masataka Shimojo, Yutaka Nakano. Pseudo-Relativistic Vector Analysis of Animal Growth in Four-Dimensional Space-Time - Preliminary Report with Problem of Dimensional Inconsistency between Space and Time. JOURNAL OF THE FACULTY OF AGRICULTURE KYUSHU UNIVERSITY. 2014. 59. 1. 91-92
Masataka Shimojo, Yutaka Nakano. Napier's Constant, Imaginary Unit, Circular Constant and Some Natural Phenomena. JOURNAL OF THE FACULTY OF AGRICULTURE KYUSHU UNIVERSITY. 2013. 58. 2. 281-285
Masataka Shimojo, Yutaka Nakano. Mathematical Relationships between Basic Growth Function and Bondi K-Factor. JOURNAL OF THE FACULTY OF AGRICULTURE KYUSHU UNIVERSITY. 2012. 57. 1. 153-154