Heiner Müller-Merbach, Donald G. Morrison, B. A. Bayraktar. Nachrichten. Math. Meth. of OR, 18(4), 1974. [doi]
@article{Muller-MerbachM74,
title = {Nachrichten},
author = {Heiner Müller-Merbach and Donald G. Morrison and B. A. Bayraktar},
year = {1974},
doi = {10.1007/BF01949631},
url = {http://dx.doi.org/10.1007/BF01949631},
researchr = {https://researchr.org/publication/Muller-MerbachM74},
cites = {0},
citedby = {0},
journal = {Math. Meth. of OR},
volume = {18},
number = {4},
}