Procurement in Humanitarian Organizations: Body of Knowledge and Practitioner's Challenges
Mohammad Moshtari, Nezih Altay, Jussi Heikkila, Paulo Gonçalves
International Journal of Production Economics, vol. 233, 2021, p. .

Diverging Moments and Parameter Estimation
Paulo Gonçalves, Rudolf Riedi
Journal Of The American Statistical Association, vol. 100, 2005, p. 1382-1393.