@article{einstein, author = "Albert Einstein", title = "{Zur Elektrodynamik bewegter K{\"o}rper}. ({German}) [{On} the electrodynamics of moving bodies]", journal = "Annalen der Physik", volume = "322", number = "10", pages = "891--921", year = "1905", DOI = "http://dx.doi.org/10.1002/andp.19053221004", keywords = "physics" } @book{dirac, title = {The Principles of Quantum Mechanics}, author = {Paul Adrien Maurice Dirac}, isbn = {9780198520115}, series = {International series of monographs on physics}, year = {1981}, publisher = {Clarendon Press}, keywords = {physics} }