Search for coherent elastic neutrino-nucleus scattering at a nuclear reactor with CONNIE 2019 data oleh The CONNIE collaboration, Alexis Aguilar-Arevalo, Javier Bernal, Xavier Bertou, Carla Bonifazi, Gustavo Cancelo, Victor G. P. B. de Carvalho, Brenda A. Cervantes-Vergara, Claudio Chavez, Gustavo Coelho Corrêa, Juan C. D’Olivo, João C. dos Anjos, Juan Estrada, Aldo R. Fernandes Neto, Guillermo Fernandez Moroni, Ana Foguel, Richard Ford, Julián Gasanego Barbuscio, Juan Gonzalez Cuevas, Susana Hernandez, Federico Izraelevitch, Ben Kilminster, Kevin Kuk, Herman P. Lima, Martin Makler, Mauricio Martinez Montero, Larissa Helena Mendes, Jorge Molina, Philipe Mota, Irina Nasteva, Eduardo Paolini, Dario Rodrigues, Y. Sarkis, Miguel Sofo Haro, Diego Stalder, Javier Tiffenberg