An Experimental Modulation-Demodulation Scheme for High-Speed Data Transmission. - Emil Hopner (IBM J. Res. Dev., 1959)

Phase Reversal Data Transmission System for Switched and Private Telephone Line Applications. - Emil Hopner (IBM J. Res. Dev., 1961)

An Investigation of binary recording density limitations in computer applications. - Emil Hopner (1962)

A Vestigial-Sideband, Phase-Reversal Data Transmission System. - Dale L. Critchlow; Robert H. Dennard; Emil Hopner (IBM J. Res. Dev., 1964)

High-Density Binary Recording Using Nonsaturation Techniques. - Emil Hopner (IEEE Trans. Electron. Comput., 1964)

Automatic Distortion Correction for Efficient Pulse Transmission. - Kenneth E. Schreiner; Howard L. Funk; Emil Hopner (IBM J. Res. Dev., 1965)

The Digital Data Exchange - A Space-Division Switching System. - Emil Hopner; Michael Allen Patten (IBM J. Res. Dev., 1984)