Physica E: Low-dimensional Systems and Nanostructures
Physica E: Low-dimensional Systems and Nanostructures > 2001 > 11 > 2-3 > 198-204
Physica E: Low-dimensional Systems and Nanostructures > 2001 > 11 > 2-3 > 224-227
Physica E: Low-dimensional Systems and Nanostructures > 2001 > 11 > 2-3 > 72-77