Zimmerer, Karl S, Bell, Martha G, Chirisa, Innocent, Duvall, Chris S, Egerer, Monika, Hung, Po-Yi, Lerner, Amy M, Shackleton, Charlie M, Ward, James David, Yacamán Ochoa, Carolina. Specialty Grand Challenges in Urban Agriculture: Ecological and Social Approaches to Sustainability Transformations. 2021.

Zimmerer, Karl S, Bell, Martha G, Chirisa, Innocent, Duvall, Chris S, Egerer, Monika, Hung, Po-Yi, Lerner, Amy M, Shackleton, Charlie M, Ward, James D, Ochoa, Carolina Y. Frontiers Media; 2021. Grand challenges in urban agriculture: ecological and social approaches to transformative sustainability.