Media type: E-Article Title: Logic Colloquium '85: Homogeneous Directed Graphs. The Imprimitive Case Contributor: Cherlin, Gregory L. imprint: Elsevier, 1987 Published in: Logic Colloquium '85 Language: Not determined DOI: 10.1016/s0049-237x(09)70548-8 ISSN: 0049-237X Origination: Footnote: