@article{701891,
     title = {The regularity condition for some natural functors},
     booktitle = {Proceedings of the 14th Winter School on Abstract Analysis},
     series = {GDML\_Books},
     publisher = {Circolo Matematico di Palermo},
     address = {Palermo},
     year = {1987},
     pages = {[105]-115},
     mrnumber = {MR0920849},
     zbl = {0634.55012},
     url = {http://dml.mathdoc.fr/item/701891}
}

Pogoda, Zdzisław. The regularity condition for some natural functors, dans Proceedings of the 14th Winter School on Abstract Analysis, GDML_Books,  (1987), pp. [105]-115. http://gdmltest.u-ga.fr/item/701891/