Physica E: Low-dimensional Systems and Nanostructures
Physica E: Low-dimensional Systems and Nanostructures > 2004 > 21 > 2-4 > 770-773
Physica E: Low-dimensional Systems and Nanostructures > 2004 > 23 > 1-2 > 19-25
Physica E: Low-dimensional Systems and Nanostructures > 2004 > 25 > 1 > 86-92