Dear Alexander,
They are described in the Patisambhidaamagga of the Khudaka Nikaya. Also in
the Visuddhimagga. In the suttas you will not find them in details, but when
you read the commentaries to the suttas you can see that the nucleus is
there. For example, the pari~n~nas are alluded to in the Kindred Sayings,
Salaayatanavagga.
Nina.
op 16-03-2004 06:39 schreef Alexander Genaud op alexgenaud@...:

> I practiced Burmese meditation in northern Thailand in order to
> gain insight by way of nanas (knowledges). I've searched sutta
> to find reference to these (such as Udayabbhaya Nana) and came
> up blank.