Polyphase

Polyphase electric currents and alternate-current motors

by Silvanus P. Thompson.

Multiphase alternating current transmission ...

H. T. Cory

Modern polyphase machinery

by Andrew Stewart ...

Polyphase currents

by Alfred Still.

Polyphase electric currents and alternate-current motors

by Silvanus P. Thompson

Transmission of power: polyphase system : Tesla patents.

Nikola Tesla

Standard polyphase apparatus and systems

by Maurice A. Oudin.

The truth about Tesla: the myth of the lone genius in the history of innovation

Christopher Cooper ; foreword by Marc J. Seifer, Ph. D.

Design of polyphase generators and motors

by Henry M. Hobart.

Fehler und Fehlerschutz in elektrischen Drehstromanlagen.

Hans Titze