"2007-04-02T21:20:27+02:00"^^ . . "Source_of_information" . . . . . . "soi" . "11578"^^ . . "The Source_of_information is referred to as a source of information related to the current text. The accreting matter forms a disc whose instabilities trigger outbursts (see Lasota 2001 for a review of the instability model)."@en . . .