HADERKA, Ondřej, PEŘINA ST., Jan. Photon source for quantum cryptography using postselection from entangled quantum states. ISBN 0-8194-4047-7. In: HRABOVSKÝ, M., KŘEPELKA, J., PEŘINA, J., eds. Wave and quantum aspects of comtemporary optics. Washington: SPIE The International Society for Optical Engineering, 2001, s. 61-69. Proceedings of SPIE., 4356. ISSN 0277-786X.