nction checksubscribe() { 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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Abinader, F., Almeida, E.P., Chaves, F.S., Cavalcante, A.M., Vieira, R.D., Paiva, R.C., Sobrinho, A.M., Choudhury, S., Tuomaala, E., Doppler K., et al. (2014) Enabling the Coexistence of LTE and Wi-Fi in Unlicensed Bands. Communications Magazine, IEEE, 52, 54-61.
https://doi.org/10.1109/MCOM.2014.6957143

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