@misc{indiciaec8443f6e6b2d, title = {Learning-dependent increases in sleep spindle density.}, author = {Steffen Gais and Matthias Mölle and Kay Helms and Jan Born}, year = {2002}, doi = {20026697}, url = {https://pubmed.ncbi.nlm.nih.gov/12151563/}, note = {Source identifier: 12151563} }