<div dir="ltr"><br> Dear Sir,<br><br> Sorry, for my statements. <br> I did not want to report them as an absolute truth.<br> My comments was only based on the <br> Quantum esspresso code.<br> In other packages, the LRT can be more <br>
efficient. <br> I have not checked them yet.<br> <br> Anyway, I would like to thank Prof. Baroni<br> for his excellent reply which will really help to clear <br> people's misconceptions about LRT <br> <br> regards<br>
SKS<br> JNCASR<br> BANGALORE<br><br><br></div>