Victor Oxman & Moshe Stupel (2021) Investigation on inscribed circles: one, two, three, four, infinitely many, International Journal of Mathematical Education in Science and Technology

Victor Oxman & Moshe Stupel (2021) Three Segments on the Diagonal of a Square, Mathematics Magazine, 94:3, 227

Victor Oxman (2021) Some inequalities in a triangle in which the length of one side and the inradius are given, International Journal of Mathematical Education in Science and Technology

*Oxman, V., Stupel, M. (2020). Proof without Words: A right triangle ABC with altitude AH = BC. The Mathematical Gazette, 104(561), 534-535

*Oxman, V., Stupel, M., Tal, I. (2020). Dynamic Investigation of Area Conservation Properties Using Computer Technology in a Classroom Activity. International Journal of Technology in Mathematics Education. Plymouth, UK, 27(4), 219-225.

Oxman, V., Sigler, A. (2020). An inequality between the area of a triangle inscribed in a given triangle and the harmonic mean of the areas of vertex triangles. International Journal of Mathematical Education in Science and Technology.

Oxman, V., Sigler, A. (2020). Relations Between Ceva's Theorem and the Concurrency of Midlines of Quadrilaterals in a Triangle. Journal for Geometry and Graphics, 24(1), 73-77

Oxman, V., Stupel, M. (2020). Conserved properties in polygons obtained by a point reflecting process. International Journal of Mathematical Education in Science and Technology

Oxman, V., Stupel, M. (2020). Constructing a Bicentric Quadrilateral. Learning and Teaching Mathematics (a Journal of AMESA- The Association for Mathematics Education of South Africa), South Africa, 28, 36.

Oxman, V., Stupel, M. (2020). Illogical use of the converse of a theorem that can cause an incorrect solution. International Journal of Mathematical Education in Science and Technology

Oxman, V., Stupel, M. (2020). Proof Without Words: Trisection of a Parallelogram’s Diagonal. Ohio Journal of School Mathematics,84,58.

Oxman, V., Stupel, M. (2020). Some activities in the style of "Proof without words” related to altitudes in a triangle. North American GeoGebra Journal, 8(1), 35-38.

Oxman, V., Stupel, M., Weissman, S. (2020). Surprising relations between the areas of different shapes and their investigation using a computerized technological tool. International Journal of Mathematical Education in Science and Technology