Traction électrique : Extrait des leçons professes a l'institut électrotechnique montefiore / Eric Gerard
Calcul et construction des machines dynamo-électriques / Silvanus P. Thompson
Curso completo y fácil de electricidade prática, el oficio de montador electricista al alcance de todos : Generalidades, corriente continua / A. Ten Bosch
Motive power and gearing for electrical machinery : a treatise on the theory and practice of the mechanical equipment of power stations for electric supply and for alectric traction / E. Tremlett Carter