@article{oai:kanazawa-u.repo.nii.ac.jp:00011847,
 author = {下川, 弥吉 and Shimokawa, Yakichi},
 issue = {2},
 journal = {金沢大学工学部紀要 = Memoirs of the Faculty of Technology Kanazawa University},
 month = {Dec},
 note = {In the present paper, the author tries to solve a system of simultaneous differential equations of the first order and a single ordinary differential equation of order higher than the first by using the net charts. The author applies the Milne's method and the Runge-Kutta's method to increase the accuracy of the required integrals and to save the troubles of computations. To illustrate the usefulness of this method for finding the first approximate value of the solution, some simple examples are shown.},
 pages = {1--10},
 title = {On the solution of ordinary differential equations by nornographic charts},
 volume = {3},
 year = {1963}
}