 Sweeney, "The Three Tomorrows of Postnormal Times , "  Futures 75 (2016) 1-13.
<fluency>  Sweeney, "The Three Tomorrows of Postnormal Times , "  Futures 75 (2016) 1-13.
 Sweeney, "The Three Tomorrows of Postnormal Times " Futures 75 (2016) 1-13.