1.
Gupta V, Singh G, Saini K. Determination of the Age of Gel Pen Inks on Handwritten Documents using Gas Chromatography-Mass Spectrometry and Chemometrics. JFDE [Internet]. 2024 Nov. 14 [cited 2024 Dec. 10];32(1):17-24. Available from: https://jfde.org/index.php/jfde/article/view/8755