Unveiling the cooling mechanism of strontium and copper oxalates as coolants in a 5‑Aminotetrazole Propellant: Modulating pyrolysis and combustion performance - Si-Yuan Zhou; Xuan Li; Qing Chen; Zhong-Wei Hu; Dan Zhang; Zhong-min Xiao; Li-Feng Xie; Mi Li; Andrei Rotaru (Fuel, 2026)