BOOKS. 2007: 132 [2021-04-09]. ISBN 978-1-4067-7302-6. (原始内容存档于2021-04-12). Blum, Alexander. On crystalline character of transparent solid ammonia. Radiation
(2005) Andrew, Dudley and Steven Ungar. Popular Front Paris and the Poetics of Culture (Harvard UP, 2005). Auboin, Roger. "The Blum Experiment," International