
doi: 10.1007/bf01091571
formal transformations, Analytical theory of ordinary differential equations: series, transformations, transforms, operational calculus, etc., normal forms, Nonlinear ordinary differential equations and systems, periodic systems, reduction to normal form, Transformation and reduction of ordinary differential equations and systems, normal forms
formal transformations, Analytical theory of ordinary differential equations: series, transformations, transforms, operational calculus, etc., normal forms, Nonlinear ordinary differential equations and systems, periodic systems, reduction to normal form, Transformation and reduction of ordinary differential equations and systems, normal forms
| 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). | 0 | |
| 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). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
