I refer to my recent question. Going beyond these, let me here point out that in many cases I am financing my research carrying out parallel works. In particular, I am developing (soft) books for researchers of (university, Max-Planck) institutes, for example, wanting to summarize their (life-long) work in (soft) books. Regrettably, I personally only reach relatively few researchers. Therefore, please let me here additionally pose the question: Are there researchers - full professors as well as emeritus professors and others - who could be interested in such a kind of support? Then please simply send me a message and let us fathom the possibilities.