@book{UBHD-1072817, author={K{\"a}llén, Gunnar}, title={Quantum electrodynamics}, publisher={Springer}, address={Berlin ; Heidelberg [u.a.]}, year={1972}, pages={XVIII, 233 S.}, language={eng}, isbn={3-540-05574-6 and 0-387-05574-6 and 978-0-387-05574-9 and 978-3-540-05574-7}, keywords={Quantenelektrodynamik}, library={PY [Signatur: PY/UO 5600 K11]}, }