Chapter 83
Differential Equations By Kaj L. Nielsen. Second edition 1966. Barnes and nobel. 66-28306

83.1 Chapter II. Definitions and fundamentals
83.2 Chapter III. First order differential equations of the first degree. Ex. III at page 35
83.3 Chapter III. First order differential equations of the first degree. Ex. IV at page 38
83.4 Chapter III. First order differential equations of the first degree. Ex. V at page 42
83.5 Chapter III. First order differential equations of the first degree. Ex. VI at page 47
83.6 Chapter III. First order differential equations of the first degree. Ex. VII at page 50
83.7 Chapter III. First order differential equations of the first degree. Ex. VIII at page 53
83.8 Chapter III. First order differential equations of the first degree. Ex. IX at page 55
83.9 Chapter III. First order differential equations of the first degree. Ex. X at page 57
83.10 Chapter IV. First order differential equations of higher degree. Ex. XI at page 69
83.11 Chapter VI. Linear equations with constant coefficients. Ex. XIII at page 106
83.12 Chapter VII. Operational method. Ex. XV at page 121
83.13 Chapter IX. System of equations. Ex. XVII at page 154
83.14 Chapter X. Solution in power series. Ex. XVIII at page 174
83.15 Chapter XV. The Laplace Transform. Ex. XXIII at page 251
83.16 Examination I. page 253
83.17 Examination II. page 256
83.18 Examination III. page 256
83.19 Examination IV. page 256
83.20 Examination VII. page 256
83.21 Examination VIII. page 256