@article{article, title = {{Transition from circle packing to covering on a sphere: the odd case of 13 circles}}, url = {{}}, year = {{1999}}, month = {{12}}, author = {{Fowler PW and Tarnai T}}, volume = {{455}}, journal = {{P ROY SOC LOND A MAT}}, issue = {{1992}}, pages = {{4131-4143}}, note = {{Accessed on 2025/05/23}}}