TY - JOUR AU - L Carr AU - Charles Clark C2 - Physical Review A (Atomic, Molecular and Optical Physics) DA - 2021-10-12 15:10:23 LA - en PB - Physical Review A (Atomic, Molecular and Optical Physics) PY - 2021 TI - Vortices, Rings, and Spherical Shells in Bose-Einstein Condensates. I. Case of Repulsive Nonlinearity ER -