Flores, Edgar and Viallon, Joele and Choteau, Tiphaine and Moussay, Philippe and Idrees, Faraz and Wielgosz, Robert I. and Lee, Jeongsoon and Zalewska, Ewelina and Nieuwenkamp, Gerard and van der Veen, Adriaan and Konopelko, L. A and Kustikov, Y. A and Kolobova, A. V. and Chubchenko, Y. K and Efremova, O. V. and Zhe, B. I. and Zhou, Zeyi and Miller, Walter R., Jr. and Rhoderick, George C. and Hodge, Joseph T. and Shimosaka, Takuya and Aoki, Nobuyuki and Hall, Brad and Brewer, Paul and Cieciora, Dariusz and Sega, Michela and Mace, Tatiana and Fuko, Judit and Szilagyi, Zsofia Nagyne and Buki, Tamas and Jozela, Mudalo I. and Ntsasa, Napo G. and Leshabane, Nompumelelo and Tshilongo, James and Johri, Prabha and Tarhan, Tanil (2019) CCQM-K120 (Carbon dioxide at background and urban level). Metrologia, 56 ( 08001). pp. 1-181. ISSN 0026-1394

Botha, Angelique and Rensburg, Mellisa Janse van and Tshilongo, James and Gupta, Prabhat K. and Johri, P. (2010) International comparison CCQM-K51: Carbon monoxide (CO) in nitrogen (5 µmol mol−1). Metrologia, 47 (Supp-1). pp. 1-97. ISSN 1681-7575