Kees, W. (1982). The Convolution product and some applications. Editura Academiei Republicii Socialiste Romania.
Cita Chicago (17th ed.)Kees, Wilhelm. The Convolution Product and Some Applications. Bucuresti, Romania: Editura Academiei Republicii Socialiste Romania, 1982.
Cita MLA (9th ed.)Kees, Wilhelm. The Convolution Product and Some Applications. Editura Academiei Republicii Socialiste Romania, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.