var email = $("#UserControl_NewsletterSubscription_TextBox_email").val();//Email if (email == "" || email == "E-mail address") { alert('Please enter an email address!'); return false; } var emailRegExp = new RegExp("[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?"); if (!emailRegExp.test(email) || email.indexOf('.') == -1) { alert('The email address that you entered is invalid!'); return false; } return true; }

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Article citations

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Hamouda, Y.A. (2012) Wind Energy in Egypt Economic Feasibility for Cairo. Renewable and Sustainable Energy Reviews, 16, 3312-3319.
https://doi.org/10.1016/j.rser.2012.02.058

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