THE SHORTEST ENCLOSURE OF THREE CONNECTED AREAS IN ℝ²
Ingemar Johansson Cox, Harrison, Hutchings, Kim, Light, Mauer, Tilton, Morgan · Real Analysis Exchange · 1994
Christopher Cox, Lisa Harrison, Michael Hutchings, Susan Kim, Janette Light, Andrew Mauer, Meg Tilton, Frank Morgan, THE SHORTEST ENCLOSURE OF THREE CONNECTED AREAS IN ℝ², Real Analysis Exchange, Vol. 20, No. 1 (1994-95), pp. 313-335