http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/6-1-6.spk.txt.bz2 http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/6-2-6.spk.txt.bz2 http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/6-3-6.spk.txt.bz2 http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/7-1-6.spk.txt.bz2 http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/7-2-6.spk.txt.bz2 http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/7-3-6.spk.txt.bz2 http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/7-4-6.spk.txt.bz2