@misc{1156046, author = {Henry Unruh}, title = {Significance of dimensionality in the spin wave theory of ferromagnetism:}, year = {1966}, month = {1966-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.TN.327}, language = {en}, }