TY - JOUR AU - Mingqing Zhai AU - Ruifang Liu AU - Jie Xue TI - A unique characterization of spectral extrema for friendship graphs JO - The electronic journal of combinatorics PY - 2022 VL - 29 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.37236/11183/ DO - 10.37236/11183 ID - 10_37236_11183 ER -