  We present results of femtoscopic analysis with K0s-K0s, Kch-Kch, p-p,
pbar-pbar, p-pbar and lambda-antilambda in Pb-Pb collisions at sqrt{s_NN}=2.76
TeV and K0s-K0s in pp collisions at sqrt{s}=7 TeV registered by ALICE at the
LHC. The femtoscopic radius is extracted from the one-dimensional correlation
functions. The analysis reveals that the emission source sizes of pions, kaons
and protons measured in heavy-ion collisions exhibit approximate transverse
mass scaling which is consistent with hydrodynamic collectivity prediction.
Furthermore, baryon-antibaryon correlations are investigated to study the
influence of Final State Interactions (annihilation). It may contribute to
lower multiplicities of protons observed at LHC energies, with respect to
predictions from thermal models.
