  Studying the history of research fields by analyzing publication records and
topical and/or keyword searches with a full Reference Publication Year
Spectroscopy (RPYS) has been introduced as a powerful tool to identify the
corresponding root publications. However, for a rather new and
interdisciplinary research field like Solar Energy Meteorology (SEM), this
method is not feasible to get a reasonably exhaustive publication set.
Therefore we apply its variant RPYS-CO to all publications co-cited with one
highly important marker paper, using the CRExplorer for plotting and inspecting
the spectrogram of the number of cited references. Examining its peaks and
their main contributing publications, we get a list of seminal papers, which
are able to adequately tell us the story of SEM up to the 1990s. Generally, we
recommend this method to gain valuable insights in (new) research fields.
