BibTeX does not have the right entry for preprints. This is a hack for producing the correct reference:
@booklet{EasyChair:13482,
author = {Hurath Ramkumar and Garima Bansal and Alinjar Dan and Subir Kumar Saha},
title = {Stable Locomotion of a 12 DoF Biped by Planning Centre of Mass Motion},
howpublished = {EasyChair Preprint 13482},
year = {EasyChair, 2024}}