5.7.3	Line and surface integrals and vector analysis

Tangent Vectors and Orthogonal Projections, Jerry Johnson, 24:3, 1993, 259-262,
C
Knots about Stokes' Theorem, Michael C. Sullivan, 27:2, 1996, 119-122, C
Independence of Path and All That, Robert E. Terrell, 27:4, 1996, 272-276, 9.8
Eigenpictures and Singular Values of a Matrix, Peter Zizler and Holly Fraser, 28:1, 1997, 59-62, C, 4.5