Same clock, different time read-out: Spontaneous brain oscillations and their relationship to deficient coding of cognitive content. - Tzvetan Popov; Petia Popova (NeuroImage, 2015)

Cross-frequency interactions between frontal theta and posterior alpha control mechanisms foster working memory. - Tzvetan Popov; Petia Popova; Maximilian Harkotte; Barbara Awiszus; Brigitte Rockstroh; Gregory A. Miller (NeuroImage, 2018)