• The temperature profile of an apple supply chain : a case study of the Ceres district 

      Valentine, A. G. Du Toit; Goedhals-Gerber, Leila L. (AOSIS Publishing, 2017)
      ENGLISH SUMMARY : Background: There is a logistical gap in the first section of the apple supply chain that affects the temperature profiles of apples further downstream in the supply chain. Objectives: This article’s ...
    • The existence of planar hypotraceable oriented graphs 

      Van Aardt, Susan A.; Burger, Alewyn Petrus; Frick, Marietjie (Discrete Mathematics & amp; Theoretical Computer Science, 2017)
      A digraph is \emph{traceable} if it has a path that visits every vertex. A digraph D is \emph{hypotraceable} if D is not traceable but D−v is traceable for every vertex v∈V(D). It is known that there exists a planar ...