\Bibitem{Ath00} \by C.~Athorne \paper Darboux maps and $\mathcal D$-modules \jour TMF \yr 2000 \vol 122 \issue 2 \pages 164--170 \mathnet{http://mi.mathnet.ru/tmf1935} \crossref{https://doi.org/10.4213/tmf1935} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=1776515} \zmath{https://zbmath.org/?q=an:0976.37041} \transl \jour Theoret. and Math. Phys. \yr 2000 \vol 122 \issue 2 \pages 135--139 \crossref{https://doi.org/10.1007/BF02551191} \isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=000086555000002}