Volume 1 (1958)

Urabe, M.;
Geometric Study of Nonlinear Autonomous Oscillations
pp. 1--84.
Hukuhara, M.;
$\bigoplus$-Endomorphisme et $\cap$-Endomorphisme d'un Treillis en Dualite et la Theorie de Riesz sur l'Endomorphisme Completement Continu, I
pp. 85--102.
Hukuhara, M.;
$\bigoplus$-Endomorphisme et $\cap$-Endomorphisme d'un Treillis en Dualite et la Theorie de Riesz sur l'Endomorphisme Completement Continu, II
pp. 103--120.
Sibuya, Y.;
Non-linear Ordinary Differential Equations with Periodic Coefficients
pp. 121--204.

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