
The development of the theory of the latitude and azimuthal effects is reviewed and the significance of Johnson's experiments on the north-south asymmetry is brought out. St\"ormer's critical remarks are commented on with reference to Lemaitre and Vallarta's paper and to recent papers by Lemaitre and by Bouckaert.
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 25 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 1% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |
