أرسل هذا في رسالة قصيرة: MATHEMATICAL MODELLING OF THE RAINFALL-RUNOFF RELATIONSHIP IN SINGAPORE: SELECTED ASPECTS

   _____    ______    _____    _    _    ______   
  / ___//  /_   _//  / ____|| | || | || |      \\ 
  \___ \\   -| ||-  / //---`' | || | || |  --  // 
  /    //   _| ||_  \ \\___   | \\_/ || |  --  \\ 
 /____//   /_____//  \_____||  \____//  |______// 
`-----`    `-----`    `----`    `---`   `------`