You can read it from here:
http://www.hlfallout.net/page/halflife/interview-hal-robins
http://www.hlfallout.net/page/halflife/interview-hal-robins
Hal Robins said:Incidentally, in HL2, if you're interested, there's a copy of Lost Socks that can be seen lying on a shelf in Eli Vance's lab. It's a pity it can't be picked up and read—but of course, there's no time, since Gordon, too, naturally has his hands full.