TY - JOUR A1 - Hänninen, R. M. A1 - Kouznetsov, R. A1 - Sofiev, M. T1 - Positive semi-definite variants of CBM4 and CBM05 chemistry schemes for atmospheric composition models JO - Geosci. Model Dev. Discuss. J1 - GMDD VL - 2023 SP - 1 EP - 16 Y1 - 2023/03/27 PB - Copernicus Publications SN - 1991-962X UR - https://gmd.copernicus.org/preprints/gmd-2023-3/ L1 - https://gmd.copernicus.org/preprints/gmd-2023-3/gmd-2023-3.pdf DO - 10.5194/gmd-2023-3 ER -