Cf. I. Melyukova's comments on changes in the burial traditions of the Scythians: Melyukova 1990, 109-110. 74 A large part of these are so-called 'secondary' graves, dug into the embankments of earlier burial mounds (kurgans). Occasionally, several such graves are discovered on one site. Cf. Garustovich, Ivanov, 2001, 128-131 (maps), 162-209 (other previously unpublished archaeological finds are also discussed here). Other archaeological studies in which information can be found on the Pechenegs include: