author = "Gutman A.E.",

title = "Archimedean and directionally closed cones",

booktitle = "Geometry Days in Novosibirsk -- 2018. International conference (Novosibirsk, September 19--22, 2018): Proceedings",

address = "Novosibirsk",

publisher = "Institute of Mathematics",

year = "2018",

isbn = "978-5-86134-220-9",

pages = "15",

annote = "A criterion is provided for a wedge to be Archimedean, which is based on the notion of closed set along a direction."