1. Ordered sets, pagenumbers and planarity

   • Richard Nowakowski
   • Andrew Parker

   OriginalPaper Pages: 209 - 218

2. Asymptotic enumeration ofN-free partial orders

   • Bayoumi I. Bayoumi
   • Mohamed H. El-Zahar
   • Soheir M. Khamis

   OriginalPaper Pages: 219 - 225

3. Transposition generation of alternating permutations

   • Frank Ruskey

   OriginalPaper Pages: 227 - 233

4. Sphere orders

   • Graham Brightwell
   • Peter Winkler

   OriginalPaper Pages: 235 - 240

5. A relation between the comparability graph and the number of linear extensions

   • Grzegorz Stachowiak

   OriginalPaper Pages: 241 - 244

6. A bruhat order for bipartite graphs whose node sets are posets: Lifting, switching, and adding edges

   • Alexander Kovačec

   OriginalPaper Pages: 245 - 263

7. Upper bound multigraphs for posets

   • Terry A. McKee

   OriginalPaper Pages: 265 - 275

8. On the dimension of the cartesian product of relations and orders

   • Klaus Reuter

   OriginalPaper Pages: 277 - 293

9. The number of depth-first searches of an ordered set

   • H. A. Kierstead
   • W. T. Trotter

   OriginalPaper Pages: 295 - 303

10. The root system of prime subgroups of a free lattice-ordered group (without G.C.H.)

    • Manfred Droste
    • Stephen H. McCleary

    OriginalPaper Pages: 305 - 309

11. Unsolved problems

    BriefCommunication Pages: 311 - 311