1. Algebraic Properties and Design of Sampling Rates in Hybrid Linear Systems Under Multirate Sampling

   • M. De la Sen

   OriginalPaper Pages: 199 - 245

2. Wiener Index of Hexagonal Systems

   • Andrey A. Dobrynin
   • Ivan Gutman
   • Petra Žigert

   OriginalPaper Pages: 247 - 294

3. On Invariants of Virtual Links

   • V. O. Manturov

   OriginalPaper Pages: 295 - 309

4. Contents to Volume 72

   Volume Contents Pages: 311 - 312