You may also wish to search for items by Dhar, P. and Dhar.
Only one matching reference was found.
Agnihotri, V.K.; Agarwal, S.G.; Dhar, P.L.; Thappa, R.K.; Baleshwar; Kapahi, B.K.; Saxena, R.K.; Qazi, G.N., Essential oil composition of Mentha pulegium L. growing wild in the north-western Himalayas India, Flavour Fragr. J., 2005, 20, 6, 607-610, https://doi.org/10.1002/ffj.1497 . [all data]