F. Schmidt

Polyurethanes. IX. New Types of Highly Elastic Products: Vulcollans. Part 2

O. Bayer, S. Petersen, Erwin Muller, 1953 .

Analytic studies of absorbing and impedance-matched boundary layers

D. Yevick, D. Yevick, Jun Yu, 1997, IEEE Photonics Technology Letters.