Text ( visual ) : unmediated Work on atomic physics (1912-1917) / edited by Ulrich Hoyer. -- Special limited ed. -- Amsterdam : Elsevier , 2008. -- xv, 647 p. : ill., facsims., port. ; 27 cm. -- (Collected works / Niels Bohr ; general editor, L. Rosenfeld ; v. 2). -- Text in English, Danish and German ; Originally published by Noth-Holland, 1981 ; Includes index ; Errata at end. -- ISBN 9780444532824 ; (BA87715818) ; https://ci.nii.ac.jp/ncid/BA87715818 Author Heading(s): Bohr, Niels Henrik David ; Hoyer, Ulrich