SELECT id, ort, fachwort, ( 6368 * SQRT(2*(1-cos(RADIANS(lng)) * cos(0.21428474519401) * (sin(RADIANS(lat)) * sin(0.84449997653572) + cos(RADIANS(lat)) * cos(0.84449997653572)) - sin(RADIANS(lng)) * sin(0.21428474519401)))) AS entfernung FROM literatur WHERE 6368 * SQRT(2*(1-cos(RADIANS(lng)) * cos(0.21428474519401) * (sin(RADIANS(lat)) * sin(0.84449997653572) + cos(RADIANS(lat)) * cos(0.84449997653572)) - sin(RADIANS(lng)) * sin(0.21428474519401))) <= 25 ORDER BY entfernung