Krzysztof Piasecki Ewa Roszkowska Tomasz Wachowicz Marzena Filipowicz-Chomko Anna Lyczkowska-Hanckowiak Fuzzy Representation of Principal's Preferences in Inspire Negotiation Support System. 981 2021 23 Entropy 8 https://doi.org/10.3390/e23080981 db/journals/entropy/entropy23.html#PiaseckiRWFL21