Infinite Series of Generalized Gosper Space Filling Curves -- Contractible Edges in a k-Connected Graph -- An Implicit Weighted Degree Condition for Heavy Cycles in Weighted Graphs -- On the Choice Numbers of Some Complete Multipartite Graphs -- On Convex Quadrangulations of Point Sets on the Plane -- Sufficient Conditions for the Existence of Perfect Heterochromatic Matchings in Colored Graphs -- Impossibility of Transformation of Vertex Labeled Simple Graphs Preserving the Cut-Size Order -- A Neighborhood Condition for Graphs to Have [a, b]-Factors III -- General Balanced Subdivision of Two Sets of Points in the Plane -- Coverage Problem of Wireless Sensor Networks -- Some Topics on Edge-Coloring -- Hamiltonicity of Complements of Total Graphs -- Isolated Toughness and Existence of f-Factors -- A Note on the Integrity of Middle Graphs -- Indecomposable Coverings -- The Decycling Number of Cubic Planar Graphs -- Quasilocally Connected, Almost Locally Connected Or Triangularly Connected Claw-Free Graphs -- Rotational Steiner Ratio Problem Under Uniform Orientation Metrics -- Two Classes of Simple MCD Graphs -- Core Stability of Flow Games -- The (Adjacent) Vertex-Distinguishing Total Coloring of the Mycielski Graphs and the Cartesian Product Graphs -- Three Classes of Bipartite Integral Graphs -- Reconfirmation of Two Results on Disjoint Empty Convex Polygons -- The Binding Number of a Digraph -- The Kauffman Bracket Polynomial of Links and Universal Signed Plane Graph -- Fractional Vertex Arboricity of Graphs -- Fitting Triangles into Rectangles -- Regular Coronoids and Ear Decompositions of Plane Elementary Bipartite Graphs -- On the Upper Chromatic Numbers of Mixed Interval Hypertrees -- Note on Characterization of Uniquely 3-List Colorable Complete Multipartite Graphs.