by Godec, Michael, Koperna, George, Petrusak, Robin, Oudinot, Anne
Published in International journal of coal geology (01.10.2013)

by Frailey, Scott M., Tucker, Owain, Koperna, George J.
Published in Energy procedia (01.01.2017)

by Trautz, Robert, Daley, Thomas, Miller, Douglas, Robertson, Michele, Koperna, George, Riestenberg, David
Published in International journal of greenhouse gas control (01.08.2020)

by Oudinot, Anne Y., Riestenberg, David E., Koperna, George J.
Published in Energy procedia (01.07.2017)

by Pashin, Jack C., Clark, Peter E., McIntyre-Redden, Marcella R., Carroll, Richard E., Esposito, Richard A., Oudinot, Anne Y., Koperna, George J.
Published in International journal of coal geology (01.05.2015)

by Koperna, George J., Carpenter, Steven M., Petrusak, Robin, Trautz, Rob, Rhudy, Dick, Esposito, Richard
Published in Energy procedia (2014)

by Koperna, George J., Kuuskraa, Vello, Riestenberg, David, Rhudy, Richard, Trautz, Robert, Hill, Gerald, Esposito, Richard
Published in Energy procedia (2013)

by Carpenter, Steven M., Koperna, George
Published in Energy procedia (2014)

by Godec, Michael, Koperna, George, Gale, John
Published in Energy procedia (2014)

by Godec, Michael, Koperna, George, Petrusak, Robin, Oudinot, Anne
Published in Energy procedia (2014)

by Trautz, Robert, Daley, Thomas, Miller, Douglas, Robertson, Michele, Koperna, George, Riestenberg, David
Published in International journal of greenhouse gas control (01.08.2020)

by Godec, Michael, Koperna, George, Petrusak, Robin, Oudinot, Anne
Published in Energy procedia (2013)

by Koperna, George, Jonsson, Hunter, Ness, Richie, Cyphers, Shawna, MacGregor, JohnRyan
Published in Processes (01.07.2020)

by Carpenter, Steven M., President, Vice, Koperna, George, President, Vice
Published in Energy procedia (2014)

by Weber, Matthew, Wilson, Thomas H., Akwari, Bill, Wells, Arthur W., Koperna, George
Published in International journal of coal geology (30.12.2012)

by Wilson, Thomas H., Wells, Art, Peters, Dwight, Mioduchowski, Andrew, Martinez, Gabriela, Koperna, George, Akwari, Bill N., Heath, Jason
Published in International journal of coal geology (01.09.2012)

by Koperna, George, Oudinot, Anne, Harpalani, Satya, Gasem, Khaled, Mohammed, Sayeed, Palmer, Ian
Published in Energy procedia (2013)

by Kuuskraa, Vello A., Koperna, George J., Riestenberg, David, Esposito, Richard
Published in Energy procedia (01.02.2009)

by REEVES, Scott R, KOPERNA, George J, KUUSKRAA, Vello A
Published in The Oil & gas journal (01.10.2007)

by Reeves, Scott R, Pekot, Lawrence J, Koperna, George J, Ammer, James R
Published in The Oil & gas journal (15.11.1999)