Several Journals (such as PNAS) now provide the option for authors to make their papers "open access". Usually by paying an extra fee (around $1,500 for PNAS). Some authors do this since it can increase their…
Several Journals (such as PNAS) now provide the option for authors to make their papers "open access". Usually by paying an extra fee (around $1,500 for PNAS). Some authors do this since it can increase their…