Berlin (2) Lisbonne (2) Portugal (2) Instruction and study (2) Childhood and youth (2) Agriculture (2) Communication (2) Texts (2) Archives (2) Texts (2) Archives (2) Nineteen forties (2) Nineteen thirties (2) Agronomy (2) Running (2) Public records (2) Landscapes (2) Gardeners (2) Diplomatics (2) Creation (2) Architecture (2) Sources (2) Sources (2) Technique (2) Influence (2) Practice (2) German influences (2) Training of (2) Creación (2) Agronomía (2)