1. Editorial introduction

   • J.G. “Jim” Dai

   Legacy Pages: 1 - 3

2. An invariance principle for semimartingale reflecting Brownian motions in an orthant

   • R.J. Williams

   OriginalPaper Pages: 5 - 25

3. Diffusion approximations for open multiclass queueing networks: sufficient conditions involving state space collapse

   • R.J. Williams

   OriginalPaper Pages: 27 - 88

4. State space collapse with application to heavy traffic limits for multiclass queueing networks

   • Maury Bramson

   OriginalPaper Pages: 89 - 140

5. Strong approximations for Markovian service networks

   • Avi Mandelbaum
   • William A. Massey
   • Martin I. Reiman

   OriginalPaper Pages: 149 - 201

6. Periodic load balancing

   • Gísli Hjálmtýsson
   • Ward Whitt

   OriginalPaper Pages: 203 - 250