G. De Rham: La théorie des formes différentiielles extérieures et l ́homologie des variétés différentiablles.- G. Fichera: Teoria assiomatica delle forme armoniche.- W.V.D. Hodge: Differential forms in algebraic geometry.- D.B. Scott: Correspondences between algebraic surfaces.- P.Dolbeault: Sur le groupe de cohomologie entière de dimension d ́une variété analytique complexe.- E. Kähler: Der innere Differentialkalkül.

The innovative work in design, typography, and content of music printer and publisher Ottaviano Petrucci (1446-1539) became the standard by which all following printers measured themselves. He created the defining moment when Italy took the lead in book printing in the Renaissance.This book is a bibliographic study of the output of the Petrucci presses, laying emphasis on the professional career of Petrucci. It includes a detailed study of technique and house-style, examining the market forces that drove Petrucci's publishing decisions, and provides a detailed catalogue of editions and copies.Stanley Boorman has made a study of the output of Petrucci's presses for 25 years. This long-awaited contribution to the field of bibliography will have an audience both in music and in rare book bibliography.