D. Kottwitz

The densest packing of equal circles on a sphere

D. Kottwitz, 1991 .

Thermal Neutron Flux Spectrum in a Medium with a Temperature Discontinuity

D. Kottwitz, 1960 .

Multiplicity and Symmetry Breaking in (Conjectured) Densest Packings of Congruent Circles on a Sphere

D. Kottwitz, J. Buddenhagen, 2003 .