**Ars Combinatoria **

**Volume XLIX, August, 1998 **

**A. Garcia and J. Tejel **"A Lower Bound for the Number of Polygonizations of N Points in the Plane"

**Suzanne Seager **"Cyclic Niche Graphs and Grids"

**Guantao Chen, Ralph J. Faudree and Warren E. Shreve **"Note on Whitney's Theorem for k-connected Graphs"

**Mark B. Beintema, Jeffrey T. Bonn, Robert W. Fitzgerald and Joseph L. Yucas **"Orderings of Finite Fields and Balanced Tournaments"

**J. Gomez and M. Escudero **"Edge-Colorings of Some Large Graphs on Alphabets"

**Yair Caro **"On graphs determined by their k-subgraphs"

**S.C. Locke **"Further Notes on: Largest Triangle-free Subgraphs in Powers of Cycles"

**Michael S. Jacobson, Andre E. Kezdy and Jeno Lehel **"Scenic Graphs I: Traceable Graphs"

**X. Munoz and J. Gomez **"Asymptotically Optimal (D, D', s)-Digraphs"

**Dan Archdeacon, Nora Hartsfield, C.H.C. Little and Bojan Mohar **"Obstruction Sets for Outer-Projective-Planar Graphs"

**F.J. Faase **"On the number of specific spanning subgraphs of the graphs G x Pn"

**Jennifer J. Quinn and Eric Lars Sundberg **"Strong Chromatic Index in Subset Graphs"

**Margaret Francel and David John **"Counting Balanced Ternary Designs"

**S. Ao and D. Hanson **"Score Vectors and Tournaments with Cyclic Chromatic Number 1 or 2"

**Lisa Markus and Douglas Rall **"On Seed Graphs with Two Components"

**Johannes Hattingh and Renu Laskar **"On weak domination in graphs"

**M.A. Francel and D.G. Sarvate **"One and Two-Block Configurations in Balanced Ternary Designs"

**Atsushi Kaneko and Mamoru Watanabe **"String Decompositions of Graphs"

**S. El-Zanati, M. Plantholt and C. Vanden Eynden **"Graph Decompositions into Generalized Cubes"

**Robert B. Gardner **"Bicyclic Directed Triple Systems"

**Roger Logan, M.K. Singh and K. Sinha **"Two Series of BIB Designs"

**E. Gocka, W. Kirchherr and E. Schmeichel **"A Note on the Road-Coloring Conjecture"

**G.H. Fricke, S.T. Hedetniemi and D.P. Jacobs **"Independence and Irredundance in k-Regular Graphs"

**Weidong Gao and Hongquan Yu **"Note on the Union-Closed Sets Conjecture"

**Dieter Olpp **"A Lower Bound for the Ramsey Multiplicity of K4"

**Xueliang Li **"On the Determination Problem for P3-Transformation of Graphs"

**Abdelhafid Berrachedi and Michel Mollard **"On two problems about (0,2)-graphs and interval-regular graphs"

**Ali A. Ali and Khidir Sharaf **"Average Distance in Weighted Graphs with Removed Edges"

**Yusheng Li and Cecil C. Rousseau **"A Ramsey Goodness Result for Graphs with Many Pendant Edges"

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