Multicationic Tetrahedra Networks: Alkaline‐Earth‐Centered Polyhedra and Non‐Condensed AlN6‐Octahedra in the Imidonitridophosphates AE2AlP8N15(NH) (AE=Ca, Sr, Ba). - Pointner, Monika M.; Pritzl, Reinhard M.; Albrecht, Jonas M.; Blahusch, Leopold; Wright, Jonathan P.; Bright, Eleanor Lawrence; Giacobbe, Carlotta; Oeckler, Oliver; Schnick, Wolfgang (Chemistry - A European Journal, 2024)