Two crops are better than one for nutritional and economic outcomes of Zambian smallholder farms, but require more labour - Thierfelder, Christian L.; Mhlanga, Blessing; Nyagumbo, Isaiah; Kalala, Kelvin; Simutowe, Esau; Chiduwa, Mazvita; MacLaren, Chloe; Silva, ‪João Vasco; Ngoma, Hambulo (Elsevier, 2024)