Forecasting Birch Pollen Levels in Belgium: First Analysis of the 2021 Season, Delcloo, Andy W., Verstraeten Willem W., Kouznetsov Rostislav, Hoebeke Lucie, Bruffaerts Nicolas, and Sofiev Mikhail , Air Pollution Modeling and its Application XXVIII, Jan 2023, Number 124, Springer Proceedings in Complexity, (2023)