The venue of the
5-th International Conference Renormalization group
2002 (RG-2002) has been moved to the Hotel Meander***
in Tatranska Strba located approximately 15 km to the west from Stará Lesná,
also in the region of High Tatras.
This year it is already the 50-th anniversary of the publication of the article
The normalization group in quantum theory by E.C.G. Stueckelberg and A. Petermann
in Helvetica Physica Acta, where the term "normalization group"
has been used, as far as we know, for the very first time.
Since their articles from 1953 are much better known among scientists,
we enclose here the above mentioned article from 1951.
The programme will include talks (40 min.) and contributions (20min.)
The following topics will be discussed:
Diverse formulations of RG and their applications in