Ploughing the Šumava hillsides, source: Čechy - Šumava, Fr. Ad. Šubert, 2000, ISBN - 80 - 86177 - 11 - 4

Ploughing the Šumava hillsides, source: Čechy - Šumava, Fr. Ad. Šubert, 2000, ISBN - 80 - 86177 - 11 - 4

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