Boruvka, O. (1971). Linear differential transformations of the second order. English Universities Press.
Cita Chicago (17th ed.)Boruvka, O. Linear Differential Transformations of the Second Order. London: English Universities Press, 1971.
Cita MLA (8th ed.)Boruvka, O. Linear Differential Transformations of the Second Order. English Universities Press, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.