This paper is a concise introduction to virtual knot theory, coupled with a list of research problems in this field.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-bc103-0-1,
author = {Roger Fenn and Denis P. Ilyutko and Louis H. Kauffman and Vassily O. Manturov},
title = {Unsolved problems in virtual knot theory and combinatorial knot theory},
journal = {Banach Center Publications},
volume = {102},
year = {2014},
pages = {9-61},
zbl = {1310.57010},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc103-0-1}
}
Roger Fenn; Denis P. Ilyutko; Louis H. Kauffman; Vassily O. Manturov. Unsolved problems in virtual knot theory and combinatorial knot theory. Banach Center Publications, Tome 102 (2014) pp. 9-61. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc103-0-1/