Study on the effects of micro-addition of hydrogen in diesel combustion in an optically accessible engine - Ayad, Sami Massalami Mohammed Elmassalami; Zanella, Igor Zornitta; Brito, Cristiano Henrique Gonçalves de; Torres, Edson Rafael; Belchior, Carlos Rodrigues Pereira; Oliveira, Prandy Lovo de; Bispo, Filipe; Villanueva, Helio Henrique Santomo; Krieger Filho, Guenther Carlos (International journal of hydrogen energy, 2024)