source: Since 2003 he is full professor at ETH Zurich and since 2009 he is the Director of the Institute for Mathematical Research at ETH.
target: Since 2003, he has been a full professor. Since 2009, he has been the Director of the Institute for Mathematical Research. He has held both positions at ETH Zurich.
references: Since 2003, he has been a full professor. Since 2009, he has been the Director of the Institute for Mathematical Research. He has held both positions at ETH Zurich.