Lubachevsky, Boris D.; Graham, Ronald L. Minimum perimeter rectangles that enclose congruent non-overlapping circles. (English) Zbl 1185.52015 Discrete Math. 309, No. 8, 1947-1962 (2009). Reviewer: Patric R. J. Östergård (Helsinki) MSC: 52C15 90C59 PDFBibTeX XMLCite \textit{B. D. Lubachevsky} and \textit{R. L. Graham}, Discrete Math. 309, No. 8, 1947--1962 (2009; Zbl 1185.52015) Full Text: DOI arXiv
Boll, W. David; Donovan, Jerry; Graham, Ronald L.; Lubachevsky, Boris D. Improving dense packings of equal disks in a square. (English) Zbl 0962.52004 Electron. J. Comb. 7, No. 1, Research paper R46, 9 p. (2000); printed version J. Comb. 7, No. 2 (2000). Reviewer: Patric Östergård (Helsinki) MSC: 52C15 05B40 90C59 PDFBibTeX XMLCite \textit{W. D. Boll} et al., Electron. J. Comb. 7, No. 1, Research paper R46, 9 p. (2000; Zbl 0962.52004) Full Text: arXiv EuDML EMIS
Graham, R. L.; Lubachevsky, B. D.; Nurmela, Kari J.; Östergård, Patric R. J. Dense packings of congruent circles in a circle. (English) Zbl 0901.52017 Discrete Math. 181, No. 1-3, 139-154 (1998). Reviewer: Juan-E.Martínez-Legaz (Barcelona) MSC: 52C15 05B40 90C99 PDFBibTeX XMLCite \textit{R. L. Graham} et al., Discrete Math. 181, No. 1--3, 139--154 (1998; Zbl 0901.52017) Full Text: DOI