Bert L. Hartnell

1. BREŠAR, Boštjan, DORBEC, Paul, GODDARD, Wayne, HARTNELL, Bert L., HENNING, Michael A., KLAVŽAR, Sandi, RALL, Douglas F. Vizing's conjecture: a survey and recent results. Preprint series. 2009, vol. 47, št. 1099, str. 1-29. ISSN 1318-4865. http://www.imfm.si/preprinti/PDF/01099.pdf, Digital Library of the University of Maribor – DLUM. [COBISS.SI-ID 15246169]

2. BREŠAR, Boštjan, DORBEC, Paul, GODDARD, Wayne, HARTNELL, Bert L., HENNING, Michael A., KLAVŽAR, Sandi, RALL, Douglas F. Vizing's conjecture: a survey and recent results : [invited lecture]. In: International Conference on Recent Trends in Graph Theory and Combinatorics (ICRTGC-2010) : a Satellite Conference of the International Congress of Mathematicians (ICM) 2010 : 12-15, August 2010, Cochin, India. Cochin: Department of Mathematics, Cochin University of Science and Technology, 2010. Str. 64-65. [COBISS.SI-ID 15649113]

3. BREŠAR, Boštjan, DORBEC, Paul, GODDARD, Wayne, HARTNELL, Bert L., HENNING, Michael A., KLAVŽAR, Sandi, RALL, Douglas F. Vizing's conjecture: a survey and recent results. Journal of graph theory. 2012, vol. 69, iss. 1, str. 46-76. ISSN 0364-9024. http://dx.doi.org/10.1002/jgt.20565, Digital Library of the University of Maribor – DLUM. [COBISS.SI-ID 16083801]

4. BREŠAR, Boštjan, HARTNELL, Bert L., RALL, Douglas F. Uniformly dissociated graphs. Ars mathematica contemporanea. [Tiskana izd.]. 2017, vol. 13, no. 2, str. 293-306. ISSN 1855-3966. http://amc-journal.eu/index.php/amc/article/download/1013/1080, http://www.dlib.si/details/URN:NBN:SI:DOC-0COBRRGY. [COBISS.SI-ID 18064729]

5. BREŠAR, Boštjan, HARTNELL, Bert L., HENNING, Michael A., KUENZEL, Kirsti, RALL, Douglas F. A new framework to approach Vizing's conjecture. Discussiones mathematicae. Graph theory. 2021, vol. 41, no. 3, str. 749-762, ilustr. ISSN 1234-3099. https://www.dmgt.uz.zgora.pl/publish/bbl_view_pdf.php?ID=48407, Digital Library of the University of Maribor – DLUM, DOI: 10.7151/dmgt.2293. [COBISS.SI-ID 52166915]