@string{JASA = "Journal of the Acoustical Society of America"}
@string{JFI = "Journal of the Franklin Institute"}
@string{PHYREV = "Physical Review"}
@string{PNAS = "Proceedings National Academy Science"}
@string{BLR = "Bell Laboratories Record"}
@string{BSTJ = "Bell System Technical Journal"}

@article{Hartley19
,title={The function of phase difference in the binaural location
	of pure tones}
,author={Hartley, R.V.L.}
,journal=PHYREV
,volume=13
,pages={373--385}
,month=JUN
,year=1919
,note={} }

@article{Hartley21
,author={Hartley, R.V.L. and Fry, T.C.}
,title={ The binaural location of pure tones }
,journal=PHYREV
,year=1921
,month=DEC
,volume=18
,pages={ 431-442 }
,note={} }

@article{Hartley28
,author={Hartley, R.V.L.}
,title={ Transmission of information }
,journal=BSTJ
,year=1928
,month=JUL
,number=7
,volume=3
,pages={535--563}
,note={} }

@article{Hartley29
,author={Hartley, R.V.L.}
,title={ ``{TU}'' becomes ``{DECIBEL}''}
,journal="Telephone Engineering"
,year=1929
,month=JAN
,volume=33
,pages={40}
,note={} }