1. On the contradiction of bang-bang-bang surfaces in differential games

   • Michael D. Ciletti

   Contributed Papers Pages: 163 - 169

2. Identification of linear systems using long periods of observation

   • J. Buell
   • R. Kalaba
   • E. Ruspini

   Contributed Papers Pages: 170 - 177

3. Analytical solutions of a class of optimum orbit modifications

   • N. X. Vinh
   • C. Marchal

   Contributed Papers Pages: 178 - 196

4. High-accuracy attitude control of satellites in elliptic orbits

   • W. H. Boykin Jr.
   • I. Flügge-Lotz

   Contributed Papers Pages: 197 - 224

5. About well-posed optimization problems for functionals in metric spaces

   • Massimo Furi
   • Alfonso Vignoli

   Technical Note Pages: 225 - 229

6. Book notices

   Announcement Pages: 230 - 231

7. Book review

   • W. H. Fleming

   BookReview Pages: 232 - 232

8. Research reports

   Legacy Pages: 233 - 233