Source: https://www.researchgate.net/profile/Ester_Bianchi/publication/280946724_Protecting_Beijing_The_Tibetan_Image_of_Yamantaka-Vajrabhairava_in_Late_Imperial_and_Republican_China_in_M_Esposito_ed_Images_of_Tibet_in_the_19th_and_20th_Centuries_Paris_l'Ecole_Francaise_de_l'Extre/links/5763a21808aeab6e490aa960/Protecting-Beijing-The-Tibetan-Image-of-Yamantaka-Vajrabhairava-in-Late-Imperial-and-Republican-China-in-M-Esposito-ed-Images-of-Tibet-in-the-19th-and-20th-Centuries-Paris-lEcole-Francaise-de-lExt.pdf