A possibility degree method for interval-valued intuitionistic fuzzy multi-attribute group decision making.- A new method for Atanassov's interval-valued intuitionistic fuzzy MAGDM with incomplete attribute weight information.- Interval-valued intuitionistic fuzzy mathematical programming method for hybrid multi-criteria group decision making with interval-valued intuitionistic fuzzy truth degrees.- A selection method based on MAGDM with interval-valued intuitionistic fuzzy sets, Mathematical Problems in Engineering.- Aggregating decision information into interval-valued intuitionistic fuzzy numbers for heterogeneous multi-attribute group decision making.- A novel method for group decision making with interval-valued Atanassov intuitionistic fuzzy preference relations.- Additive consistent interval-valued Atanassov intuitionistic fuzzy preference relation and likelihood comparison algorithm based group decision making.- A three-phase method for group decision making with interval-valued intuitionistic fuzzy preference relations.- A group decision-making method considering both the group consensus and multiplicative consistency of interval-valued intuitionistic fuzzy preference relations.