Hans Pettersson
![Hans Pettersson around 1939](https://upload.wikimedia.org/wikipedia/commons/b/b8/Hans_Pettersson.jpg)
1
Published: [2019]
Superior document: Title is part of eBook package: De Gruyter DGBA Physical Sciences <1990
2
Published: [2022]
Superior document: Title is part of eBook package: De Gruyter DGBA Physical Sciences <1990
3