Baldry, John: The French Claim to Sayh Sa'id (Yaman) and its International Repercussions 1868 - 1939
 

Zeitschrift der Deutschen Morgenländischen GesellschaftBd. 133 (1983)The French Claim to Sayh Sa'id (Yaman) and its International Repercussions 1868 - 1939