BBM92 quantum key distribution over a free space dusty channel of 200 meters. - Sarika Mishra; Ayan Biswas; Satyajeet Patil; Pooja Chandravanshi; Vardaan Mongia; Tanya Sharma; Anju Rani; Shashi Prabhakar; Ravindra Pratap Singh (CoRR, 2021)