On Darboux and Singular Darboux Transformations ofG-unitonsYuxin · Science China Mathematics2002PDF159 KB
Darboux TransformationsBruckner et al. · Transactions of the American Mathematical Society1967PDF1.3 MB
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The Darboux System: Finite-rank Constraints and Darboux TransformationsGuil · Journal of Mathematical Physics1997PDF362 KB