D. Mitrea and M. Mitrea, Univ. of Missouri, USA; I. Mitrea, Temple Univ., Philadelphia, USA; M. Taylor, Univ. of North Carolina, USA.
The book represents the cumulation of a large body of work of the authors. Nonetheless, it is essentially self-contained, including the main geometric and analytic preliminaries. There are a large number of variations of settings. But the book is very well structured, avoiding potential confusions here. Mathematical Reviews