أرسل هذا في رسالة قصيرة: Better than their reputation: Enhancing the validity of contingent valuation mail survey results through citizen expert groups

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