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The perfectly matchable subgraph polytope of a bipartite graph
Balas, Egon, (1981)
A nine point theorem for 3-connected graphs
Holton, Derek A., (1981)
On proximity to paths and cycles in 3-connected graphs
Plummer, Mike D., (1981)
Statistical Control Applications in Linear Programming
Enrick, Norbert Lloyd, (1965)
Quantitative Marktprognose
Enrick, Norbert Lloyd, (1972)
Qualitätskontrolle im Industriebetrieb : Methoden und Anwendungen
Enrick, Norbert Lloyd, (1961)